# 1st Grade Common Core: 1.OA.3

Common Core Identifier: 1.OA.3 / Grade: 1
Curriculum: Operations And Algebraic Thinking: Understand And Apply Properties Of Operations And The Relationship Between Addition And Subtraction.
Detail: Apply properties of operations as strategies to add and subtract.3 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
35 Common Core State Standards (CCSS) aligned worksheets found:
Practice recognizing and working with the properties of addition problems. This is a good introductory worksheet that contains only simple 1 and 2-digit numbers.
More fact family subtraction-addition fact family triangles to solve.
Write the correct addition/subtraction fact family for each set of numbers.
Write the correct numbers in each addition/subtraction fact family triangle.
Even more addition square logic puzzles
Add or subtract to find the missing part of each number bond.
Another set of add-subtract number bonds.
Find the dollars and cents value of each word.
This set of Math Buzz worksheets has more place value questions, coin identification (dime and quarter), some 10 more/10 less problems, and simple addition with three addends.
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.
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.
More addition square brain teasers for students to solve; Sums up to 30;  Medium level.
Students complete the addition squares by putting numbers in boxes to make the given sums.  Easiest level.  2x2 grid.
Basic addition facts.  The first addend for each problem is between 0 and 8.  Cute wizard pictures.
Yet another set of addition puzzles on a 3 by 3 grid for students to solve.
Count the dots on each domino and add to find the sum.
Adding - Basic facts practice drill worksheet.  The first addend ranges from 0 to 4.  Includes pictures of horses.
More difficult addition squares.  Solve by placing numbers in boxes to find the given sums.  2x2 grid.
Basic addition worksheet.  First addend is between 0 and 9.  Includes cartoon frog pictures.
Even more difficult addition square puzzles
Write the domino addends, then count the dots to find the correct sum.
Adding practice sheet.  The first addend ranges from 0 to 5.  Playful monkey pictures decorate the worksheet.
Another basic facts drill.  The first addend is between 0 and 6.  This worksheet has race car graphics.
Even more level level 1 addition puzzles to build students' logic skills.
Try to write the answers to all 50 Basic Addition Facts (0 -9) as quickly as possible.
Most difficult math addition squares on a 3x3 grid.  Challenging level.
Practice worksheet with basic addition facts.  The first addend is between 0 and 2.  The second addend is between 0 and 9.  Includes pictures of cute monsters.
Practice sheet with forty-three basic addition facts.  The first addend ranges from 0 to 3.  Includes pictures of roller coasters.
More basic addition fact practice.  The first addend is between 0 and 7.  Kitty cat pictures.
Find the missing numbers. Geometry and time challenges.
More level 1 addition squares; Includes 3 puzzles for students to solve; Sums up to 18
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.
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