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

Common Core Identifier: 1.OA.1 / Grade: 1
Curriculum: Operations And Algebraic Thinking: Represent And Solve Problems Involving Addition And Subtraction.
Detail: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.2
43 Common Core State Standards (CCSS) aligned worksheets found:
This worksheet has four very basic addition and subtraction word problems with an Easter theme.
Tell how much money is shown. Write the numbers in standard form. Solve the addition and subtraction word problems.
Complete the mixed-up addition table by writing sums in the empty squares.
Challenge your students to solve these five single and multi-step word problems. Includes multiple addends, comparing, and basic adding & subtracting.
In the first week of 1st grade Math Buzz, students will review basic Kindergarten skills. This file has 5 worksheets, one for each day of the week. Skills include basic addition, counting on a five-frame, writing numbers, and identifying basic shapes.
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.
Here's another version of the addition table. This one has a pink bear graphic at the top.
Skills in this set include ordering numbers, operations, and very basic repeated addition.
This version of the adding table has a blue bear at the top of the page.
Solve five more simple addition and subtraction problems with simple, easy-to-read vocabulary.
Using this printable activity, students can find their matching puzzle piece by solving basic addition problems.
Scoot! is a fun game that the whole class can play together. Students move to each desk in the classroom, solving basic addition problems. Game includes 30 task cards, teacher instructions, and a student answer worksheet.
Here are more problems related to basic addition and subtraction, as well as simple repeated addition (multiplication).
This week, students will find the total value of the coins shown (pennies and nickels), compare sums (using <, >, or =), solve word problems, and tell time on an alaong clock to the nearest half hour.
Help the mouse find the cheese. Along the way, answer the addition facts with sums to 20.
This page has four mini charts that you can cut apart and give to students.
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.
Print out this puzzle to practice basic subtraction. Minuends and subtrahends up to 9.
In this game, kids take turns rolling a die. The number rolled corresponds with a column of math facts on the game board. They read the column of addition facts (with answers) as quickly as possible.
On these 2nd grade WPs, kids will find more sums, differences, and products. Half require only one step and half require multiple steps.
In the final first grade Math Buzz worksheet set, students will draw coins to make 7 cents, find sums and compare, draw lines to divide circles into halves and quarters, find sums and differences.
This file contains 5 worksheets, with one problem on each page. There are 3 questions with multiple-steps and 2 with a single step. (Click the 'Alt' button below if you prefer color poster versions of these problems.)
In these files you have basic addition & subtraction, as well as addition with 3 addends. There's also one on comparing numbers, and repeated addition (multiplication).
Here's a more basic addition table, with facts up to 5.
This file contains a dozen word problems. Each one requires children to add or subtract.
Print out these puzzle pieces to practice basic subtraction.
Find sums for all basic facts on the addition table.
This file contains the next 5 word problems in the first grade set. All word problems have easy-to-read words, and require only basic addition and subtraction skills.
Students complete the addition squares by putting numbers in boxes to make the given sums.  Easiest level.  2x2 grid.
Solve the basic subtraction problems with differences up to 9.  This worksheet is decorated with Hanukkah clip art.
More addition square brain teasers for students to solve; Sums up to 30;  Medium level.
This fun chain reaction game that teaches basic addition facts.
Yet another set of addition puzzles on a 3 by 3 grid for students to solve.
Even more difficult addition square puzzles
More difficult addition squares.  Solve by placing numbers in boxes to find the given sums.  2x2 grid.
Students use the number line picture to help them add.
Most difficult math addition squares on a 3x3 grid.  Challenging level.
Players match the addition fact card to the sums.
Even more level level 1 addition puzzles to build students' logic skills.
More level 1 addition squares; Includes 3 puzzles for students to solve; Sums up to 18
Even more addition square logic puzzles
Memory match card game. Flip cards to match each addition fact with the correct domino.
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