# 1st Grade Common Core: 1.OA.6

Common Core Identifier: 1.OA.6 / Grade: 1
Curriculum: Operations And Algebraic Thinking: Add And Subtract Within 20.
Detail: Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
235 Common Core State Standards (CCSS) aligned worksheets found:
This fun chain reaction game that teaches basic addition facts.
Look for pairs of connecting numbers that have a sum of 13. These game boards are shaped like lucky four-leaf clovers.
Write the answers to the subtraction facts and color the royal castle.
Subtraction mystery picture of an Easter bunny with a basket of eggs.
More fact family subtraction-addition fact family triangles to solve.
Find the answer to each basic subtraction fact, then color to see the blue and gray whale.
Find the difference for each basic subtraction fact. Then color according to the key to reveal a brown owl. All subtraction problems have differences within 20.
Use the number line to determine the missing number in each subtraction fact.
Find the difference for each subtraction fact. Then color according to the key to reveal a colorful Chinese New Year picture.
Find the differences and color the dog picture according to the color code.
Find the answers to the the basic addition problems, then color according to the key.
Write the answers to the subtraction problems and color the picture according to the key.
Add or subtract to find the missing part of each number bond.
Find pairs of numbers that add up to 9. This game has a panda bear theme.
Solve all of the mixed addition and subtraction facts as quickly as possible. Includes sums up to and including 20 and differences up to and including 10.
Write the answer for each basic subtraction facts, then color according to the key.
How many more counters are needed to make 20 in each group?
25 more subtraction facts (0-18) for students to try.
A complete set of basic subtraction flashcards up to 18 - 9. This file has 4 large cards per page.
How many of these 25 subtraction facts (0-18) can your students complete in one minute?
Match each subtraction with with the answer in this fun card game.
Add the counters shown on the ten frames and write the sum.
Look for pairs of connecting numbers that have a sum of 14. These game boards are shaped like winter snowmen.
Solve the subtraction problems and color-by-number to reveal a picture of a colorful parrot.
Addition mystery picture of an Easter bunny with a basket of eggs.
Write the correct addition/subtraction fact family for each set of numbers.
Subtract the numbers to find the differences, then color according to the code at the bottom.
Solve the addition problems and color the sums to reveal an owl. (Note: This picture requires students to have 3 shades of brown crayons.)
Determine which subtraction problems are being shown by each of the number lines.
Players match the addition fact card to the sums.
Solve the basic subtraction problems and color-by-number to reveal a picture of a rooster.
Print out the heart-shaped game board. Then color pairs of adjacent numbers that add up to 14. The player with the most colored shapes wins.
Write the answers to the subtraction problems and color the picture according to the key.
Another set of add-subtract number bonds.
Look for pairs of adjoining numbers that add up to 17. This set of four game boards have a dinosaur theme.
Use the number line to add or subtract.
Write the sums for the basic addition facts, then color according to the key.
Solve the basic subtraction problems (all minuends are 18 or less; all subtrahends are exactly 9). Then color the mystery scene according to the key. Scene will show a beach ball and sand pail.
Write the sum for the basic addition facts, then color the stocking according to the key.
When they solve and color the picture, students will see a colorful sailboat.
Basic addition math drill sheet with addends 0 through 9.  Includes Martin Luther King graphics.
Write the answers to the basic subtraction facts and color the sections of the leprechaun the correct color.
Try to find and circle all of the addition facts hidden in this number hunt puzzle.  It's kind of like a word search, except students search for addition facts.
Players look for pairs of numbers add up to 12. These game boards have hot air balloon pictures.
Solve 43 basic subtraction problems as quickly as possible. All numbers are 20 or less. Differences are ten or less.
Solve to find the answers to the basic subtraction facts. Then color according to the key to reveal a picture of the planet Earth.
Write the correct numbers in each addition/subtraction fact family triangle.
Solve the basic subtraction problems and color by number to reveal a picture of a colorful butterfly.
On this worksheet, a ladybug is revealed when students correctly find the sums to basic addition facts.
This two player addition game is great for the beginning of the school year. Students take turns finding pairs of adjacent numbers on the game board that add up to ten.
A colorful hot air balloon will be revealed when you answer the math facts and color according to the key.
Write the answers to basic subtraction problems and color the Thanksgiving turkey according to the key.
Print out the pumpkin-shaped game board. Then color pairs of adjacent numbers that add up to 15. The player with the most colored shapes wins.
Students use the number line to help them subtract.
Solve the basic addition problems, the cut out the squares and glue them in the correct places to reveal a fun 100 Days mystery picture.
Use the number lines to determine the missing quantity in each subtraction fact.  Use the "count back" technique.
Print out the game board. Then color pairs of adjacent numbers that add up to 17. The player with the most colored shapes wins.
Subtraction fact blast off!  Solve the facts and color the rocket.
Solve the basic addition problems with sums up to 18.  This worksheet is decorated with Hanukkah-related pictures.
Solve the basic addition problems and color according to the key to create a magical leprechaun picture.
Subtract the problems to find the differences, then color according to the key.
Search for pairs of adjacent numbers that ave a sum of 11. This game has a turtle theme.
This worksheet has 43 basic subtraction facts. How quickly can you students solve them? All numbers are 18 or less. Differences are all equal to or less than nine.
Write the difference for each of the basic subtraction facts, then color according to the key.  Christmas stocking picture.
Looking for more than 25 facts?  Try this worksheet.  It has 50!
Look for pairs of adjacent numbers that have a sum of 10. These game boards are shaped like a fall leaves.
Write the answers to the subtraction problems, then color the mystery picture of a clownfish.
Write two addition and two subtraction facts shown by each double ten frame.
This worksheet has four very basic addition and subtraction word problems with an Easter theme.
Use addition or subtraction to determine the missing number in each part-part-whole box.
Give values of the digits in three-digit number. Subtract to find out how many tulips are in a garden. Color the odd and even tiled numbers.
When students play this game, they will take turns rolling a die. The number they roll corresponds with a column on the game board. They must read and answer all subtraction facts in the column as quickly as they can.
Tell which facts are written correctly and which ones are incorrect. When a fact is incorrect, cross off the difference and write the correct answer.
Have your students solve these very basic subtraction problems. Then they will use the color key to color in the puzzle to reveal sea shells on a beach.
In this memory match card game, students take turns trying to match addition facts with their sums. Makes a great game for small groups or learning center activity. (Recommendation: Print on card stock so students cannot see through the cards.)
This printable worksheet provides number lines to help students solve the addition problems.
Draw the counters in the space to provided to help form the number sentence for the subtraction problems.
Color and solve the math problems. Addends are 5 or less. Sums are 10 or less. (examples: 3+4=7 and 4+4=8)
Features illustrations of a cat and a pig in a swimming pool.
Write the answers to the addition facts (doubles, up to 10+10). Then color according to the key. The finished picture is a whale.
This worksheet has ten-frames with red and white counters all adding up to ten. Students will find the missing number to complete the math fact.
Cut out the boxes on the bottom of the worksheet and use a glue stick adhere the sum to the correct math fact.
Students roll a die and match the number rolled with a column on the subtraction chart. They read and answer all of the subtraction facts in the column as accurately and quickly as possible. All minuends and answers are 10 or less. (ex: 7-3=4)
This week, students practicing counting and writing numbers up to 30. Calculate missing addends in addition equations. Identify longer/shorter and long/longer/longest objects.
This file contains two worksheets. Completing each will result in a different picture.
Each of these facts has addends up to 10 and sums of 20 or less. Illustrations show an kids outside in the rain.
Use scissors to cut out the ten-frame boxes on the bottom of the worksheet and glue them to the matching number sentence above.
The sun picture has numbers in it. Circle pairs that have sums of sixteen.
After writing the differences for the problems on the page, color the sea monster (dragon) according to the color code at the bottom of the picture.
Your students will solve the basic addition facts and then color each section according to the color key at the bottom.
This is a fun, single-player game to play with dice. Your student will roll two dice and write the numbers in the boxes (larger number first) and solve the subtraction problem.
On this worksheet, students will determine how many counters are missing from the problem and draw them in to complete the subtraction problem.
This is a simple addition table that students can use for reference. Sums on the vertical and horizontal axis go up to 5.
This set contains 65 flash cards and a sorting mat. There are 9 cards per page.
Cut out these 36 cards. Flip all the cards face down. Have students take turns flipping the cards to make a match. Example: the "3 + 5" card will match the "8" card.
First write the answers to the basic subtraction facts. Then color each section of the picture according to the key at the bottom. The finish picture shows a groundhog popping out of his burrow in springtime.
Print out these subtraction puzzle pieces for a fun way to practice basic subtraction facts.
Challenge your students to solve these basic subtraction facts on this printable worksheet. Minuends are all 10 or less.
In week 3, students will review in-out boxes, addition, counting money, measurement with non-standard units, and part-part-whole models.
This worksheet helps reinforce both doubles and doubles + 1 math skills. Includes both vertical and horizontal problems.
This is a 2-player game for students to compete and practice their addition facts with each other.
On this worksheet, students will use the number sentence to draw the counters in the ten-frame and find the sum.
Cut apart the puzzle pieces. Match subtraction problems with their answers. Make a great learning center. (Note: There is an alternate, full-color version of this activity. If you'd like the color version, click the "alt" button below.)
On this worksheet, number blocks are used as models for basic doubles +1 addition facts.
Solve the basic math facts on this page and then color by number to reveal a colorful sailboat.
Add the dots on the dominoes. Write each sum.
Students will "count back" on the number lines to find the missing subtrahend in each subtraction fact.
Add and using place value blocks. Solve addition and subtraction word problems. Draw hands on an analog clock (nearest hour). Identify flat faces of a cylinder.
Help the mouse find the cheese. Along the way, answer the addition facts with sums to 20.
This printable addition worksheet has twenty addition problems to be solved. The addition facts on this worksheet are listed horizontally with addends up to 10 and sums up to 20.
Write the answers to the basic addition problems (with addends up to 10). Then color each part of the tree according to the key at the bottom of the page.
This worksheet has pictures of red and white counters. Add to find the sums.
This worksheet has number lines to help students solve the subtraction facts.
On these word problems, students will count the number of sides on a polygon, add pencils, and add bundles of sticks by skip counting.
Help the rocket find the star. Along the way, answer the subtraction facts with minuends to 20 and answers to 10.
Have your students practice solving subtraction facts horizontally with this worksheet. There are 12 subtraction facts to solve with minuends of 10 or less.
After writing the answers to basic subtraction problems, students color the Christmas tree according to the color code at the bottom of the page.
Solve the subtraction facts and color according to the key to reveal a fox!
Students can solve nine subtraction problems on this printable worksheet. Minuends are 10 or less. Images on this worksheet are of kids playing winter sports.
Your students will have fun solving the subtraction problems and coloring in the mystery picture to reveal school supplies on a desk.
This worksheet has a pair of tens frames with an equal number of counters in each. Add up the number of counters in each to find the answer.
This worksheet has 20 addition problems for students to solve. Addends are 10 or less and sums are up to 20.
Find and draw the missing counters and then complete the subtraction fact.
Each of these facts has addends below 10 and sums of 10 or less. Illustrations show an astronaut and planets.
Write the answer to each basic addition fact (doubles). Then use the color key at the bottom to complete the picture.
Students love playing our Scoot! games. There are 30 task cards, answer sheets for 20, 25, and 30 questions, and teacher instructions. This version of Scoot! has simple math addition facts to be solved, ideal for students in grades K - 2.
Cut out the numbers (sums) on the bottom of the page. Match each sum with the correct addition fact. Glue the sums in the correct boxes.
Print this worksheet to have your class practice their addition and subtraction facts. Minuends and addends are all 20 or less.
Complete a number bond (fact family). Tell how many tens and ones it takes to make 43. Tell time on an analog clock. Measure a glue stick using non-standard units.
Solve the addition problems and color according to the key to reveal the mystery pictures.
Write the answers to twenty addition facts and color the pictures, if you wish. Addends are 10 or less. Sums are up to 20. (examples: 6+10=16 and 9+9=18) This worksheet features illustrations of kids holding seashells.
This mini-book is a fun way for students to practice with ten-frames and addition skills. Cut out the pages and assemble, then fill out the ten-frames and solve the math fact.
One, two or three students can play this addition game. Players take turns finding pairs of numbers that ad up to fifteen. (11+4, 10+5, 9+6, 8+7, etc.) This game has a spring flower theme.
Challenge your students to write the answers to all fifty subtraction facts as quickly as possible.
Solve all of the subtraction problems and color in the picture according to the color key on the bottom of the worksheet.
Use the illustrations of red and white math counters to solve the basic doubles +1 addition facts.
Solve basic addition problems and color the areas based on the sum. The picture will reveal a cute fox.
Solve the basic subtraction problems by drawing counters in the space provided and circling the counters to make up the minuend.
Write the answers to the subtraction facts on the caterpillar. All facts have minuends of 20 or less. (example: 15-5)
Download and print flash cards for all basic subtraction facts with minuends to 20 and answers to 10. There are 9 cards per page.
Use scissors to cut these 36 cards out along the dotted lines. Match the basic addition problem to the matching domino card.
Write the sum of each pair of numbers. Then color according to the key at the bottom. The finished picture shows a groundhog emerging from his hole.
Print out this puzzle to practice basic subtraction. Minuends and subtrahends up to 9.
These basic subtraction problems all have minuends of 10 or less. There are nine facts to solve which are in a large font for early learners.
Count, trace, and write numbers 11-15. Subtract numbers using illustrations. Identify basic shapes. Compare single-digit numbers.
Students can solve these basic subtraction problems and then color the picture accordingly to reveal a fun Easter design.
Play Bingo and learn basic subtraction facts at the same time! This printable includes 42 calling cards with subtraction facts on them and a class set (30) of bingo boards.
This printable uses ten-frames to help students find the right number sentence and use their addition skills to determine the sum of each math fact.
Students will find the difference for each of these problems. Use scissors and glue to match the numbers to the correct boxes.
Use illustrations of ten frames with counters to answer the math facts.
Students will plot the given points and reveal the mystery picture: a Valentine's Day heart.
Write the answers to the subtraction facts on the caterpillar. All facts have minuends and quotients of 10 or less. (example: 7-3)
Then sort them into two categories on the t-chart: doubles or doubles +1.
This printable worksheet has 4 word problems with a picture model to help students solve the subtraction problem.
Write the answers to the addition problems on the caterpillar. All addends are 5 or less. All sums are 10 or less.
Cut apart the stars along the dotted lines into 30 pieces. Spread out the pieces on a table and combine matching problems and numbers to make stars.
Complete the missing number for each number bond (number family).
Solve the basic math problems in the picture. Use the answers to find what color each space should be and reveal a beach scene.
This printable worksheet features twenty basic horizontal addition and subtraction problems.
First, write the answers to the addition facts. (Facts have addends up to 10.) Then follow the code at the bottom to color the spaces. The finished product is a portrait of Santa Claus.
Color the robot picture by answering the subtraction facts and using the key.
Practice solving basic subtraction problems with minuends of 10 or less with this printable. These 9 math facts are in an easy-to-read font for early learners.
This file has 5 worksheets, one for each day of the week. Skills include basic addition, place value with base-10 blocks, measurement with non-standard units, and solving word problems.
Use the number block models to help find the answers to the basic addition facts.
Cut out the pieces to these 6
star-shaped puzzles. Then place the problems with the same sum to make stars.
Have your students solve the subtraction word problem by drawing a picture to help find the answer.
The problems on this page has addends and sums of 10 or less. (examples: 8+2=10 and 5+4=9)
Quickly and accurately solve the addition basic facts. All facts are doubles, from 0+0 up through 10+10. Features illustrations of children playing soccer.
Students will use their knowledge of basic math facts to balance the scales on this worksheet. For example: 4 and 3 on one side of the scale will equal 7 on the other side of the scale.
Roll a pair of dice and add the results. This game can be played with standard 1-6 number cubes or 0-5 number cubes.
Have your students figure out which subtraction problems are being shown on each of the number lines.
Color the date on a calendar. Measure a marker with non-standard units. Compare two digit numbers using <, >, and =. Solve basic addition and subtraction word problems.
Find the answers to the subtraction problems and color according to the key to reveal the patriotic mystery picture.
Color and solve these 20 math problems. Addends are 10 or less. Sums are 20 or less. (examples: 6+9=15 and 7+7=14)
Illustrations of kids on a bike and a skateboard are featured on this worksheet.
This printable has 15 pennants that can be cut out and colored. Then solve the ten-frame addition fact. Lastly, these pennants can be strung up on a rope or string to hang in the classroom.
This is a game for 1, 2, or 3 players. The Easter eggs on these pages have numbers on them. Players take turns searching for pairs that have sums of thirteen. (10+3, 9+4, 8+5, 7+6, etc)
Here's an alternate version of the drill sheet above.
Solve and color in this mystery picture according to the key to reveal a sunny beach with colorful seashells.
Slide the facts through the airplane and say the answers. (Recommendation: Print on card stock for best results.)
This printable worksheet is a fun way for students to practice their basic addition facts. Solve the addition problems and color the space based on the sum to reveal a robot.
This worksheet provides a space for students to draw pictures to help them solve the subtraction problems.
This page has nine basic facts on it. All facts have addends of 5 or less and sums of 10 or less. (examples: 4+4=8 and 3+3=6) Includes cute, colorable illustrations of ants carrying food.
Use these flash cards to practice adding doubles up to 10.
Use the dominoes to make and solve these basic addition problems.
This subtraction exercise helps students practice solving problems with differences from 0 to 10. The final picture is a bird sitting on her nest.
Students can hunt for basic subtraction facts with this printable number puzzle. Find and circle all 20 subtraction facts.
Download and cut apart subtraction flashcards. Use them for small group instruction, independent practice, or classroom games.
Trace numbers. Show numbers on a ten-frame. Add and subtract with graphical models of manipulatives. Classify shapes. Identify correct preposition words.
Will this mystery picture reveal a Valentine's Day dog or two lovebirds? It depends which of the two pages you complete!
This printable worksheet has basic addition problems to solve. Next, use the sums to determine what color to use for each space. An airplane will appear in the finished picture.
The first part of this worksheet has students using the counters in the ten-frame to find the number sentence. The second part uses the number sentence to fill in the ten-frame.
This file has 100 basic fact pennants you can hang in your classroom. If you'd like a black-and-white version that children can color, click on the "ALT" button below.
Cut out ten number tiles at the bottom of the page. Glue each number next to the correct subtraction fact.
Solve to find missing addends in an equation. Count corners on a polygon. Find and identify rectangles and circles. Solve simple addition and subtraction word problems.
This file contains three worksheets. They may look like they have the same design, but when colored in according to the addition problems, each will reveal a unique Easter picture.
Print out this worksheet to practice basic addition problems with sums up to 20.
Read each word problem to fill out the ten-frame, write out the math fact, and find them sum.
Use the pictures of counters to help you solve the basic subtraction problems.
Flip the cards upside down. Match the addition facts with their sums. The player with the most matches wins. (Recommendation: Print on card stock or thick paper so students cannot see through the cards.)
Using pictures of fruit as a visual aid, student will solve these four basic subtraction problems.
Write the answers to the addition facts on the sections of the caterpillar.
Students will use the number line to determine the addition or subtraction problem and write it on the line.
This file contains flashcards for reviewing basic addition facts with sums to 10. There are 9 cards per page. The final page has a sorting mat.
This printable has a set of 30 bingo boards and 42 calling cards with basic addition facts to call out.
This printable math worksheet is another version of mixed addition and subtraction math facts laid out horizontally.
After solving the basic subtraction facts, color each part of the Santa picture as indicated by the key at the bottom.
Using this printable activity, students can find their matching puzzle piece by solving basic addition problems.
This printable has 9 basic subtraction facts on it. Minuends are 10 or less (ex. 10-7=3, 9-3=6). This worksheet includes images of a mouse and his cheese.
In this set, students will review skip counting by 5s, measuring with non-standard units, telling time to the nearest half hour, and comparing 2-digit numbers.
Students use the domino images to write out equations and add the doubles.
Use scissors to cut along the dotted lines and separate all of the puzzle pieces. On the attached page, there are several different ways for your students to play and learn with these puzzles.
This worksheet uses pictures of eggs to help students solve the subtraction problems and then write the number sentence to go with it.
Players take turns rolling a pair of dice. After each roll, the player subtracts the smaller number from the larger number. The player with the greatest difference wins the round. All minuends and answers are 10 or less.
Work on improving speed and accuracy with this addition doubles drill worksheet. Features illustrations of children wearing animal masks.
Solve the basic math facts on this worksheet and color each section according to the key at the bottom. The completed worksheet will reveal a rocket ship in space.
Players take turns rolling pairs of dice. They add the numbers together to find the sum. Player with the highest sum wins the round.
These printable number line worksheets make provide a visual aid to help students identify the subtrahend in each subtraction fact.
Draw hands on a clock. Find related math facts. Add using place value blocks. Solve addition/subtraction word problems. Find the sum of three single-digit addends.
Help the butterfly find the flowers. Along the way, answer the addition facts with sums to ten.
Solve basic addition facts laid out horizontally. There are 12 addition problems, addends to 5 and sums to 10.
Find the differences for each fact shown. The color the spaces to reveal a picture of a ladybug landing on a purple flower.
Find pairs of numbers that add up to twelve. These game boards have a Thanksgiving turkey theme.
One more version of our speed subtraction drill. This timed quiz has 50 questions.
Students will solve the basic addition problems and color in the spaces to reveal school supplies and an apple on a desk.
Solve each word problem with an addition doubles fact.
Use the number line to determine the addition problems.
Complete the picture models to help find the answer to the subtraction problems. Then write a subtraction fact for each.
Write the answers to nine addition facts and color the pictures. Addends are 5 or less. Sums are also 5 or less. (examples: 2+3=5 and 0+3=3) Features illustrations of kids dressed as superheroes.
This file has 31 flash cards for practicing doubles facts and doubles plus 1 facts. There's also a sorting mat on the last page.
Cut apart the stars into 30 pieces. Have your students combine matching sums and numbers together to form stars.
Circle pairs that add up to eleven. This version has a penguin graphic.
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