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1st Grade OA- Operations and Algebraic Thinking Printables

This addition and subtraction pack is a quick no-prep go-to resource to use when teaching addition and subtraction! This is not a curriculum, but a resource to help supplement your lessons! With printables for topics such as counting on, missing addends, word problems, and more!

This item aligns to the Common Core standards for the Operations and Algebraic Thinking domain, but you don't have to be a Common Core classroom to use this pack! There are TWO sets of sheets in this pack. One set has the CCSS tag (such as 1.OA.2) and the other set comes without a tag for teachers who do not follow CCSS.

Topics Covered:

-Word Problems to 20

-3 Addend Word Problems to 20

-Addition and Subtraction Strategies

-Unknown Addends

-Addition and Subtraction Fluency

-Understanding the Equal Sign

**This item is included in a money-saving printables bundle.**

Click**here** for the printables bundle.

**You can save even more money when buying this item in a first grade common core bundle, which includes the printables bundle, plus short answer, centers, and interactive notebook templates.**

Click**here** for the MEGA bundle.

**Not interested in buying bundles? But you still want 1st grade OA products?**

Click here for OA centers.

Click here for OA interactive notebook activities.

Click here for OA short answer problems.

**This purchase is for one single classroom only.**

If you're interested in sharing with other classrooms, make sure to buy the extra licenses for 50% off through the TeachersPayTeachers tool. If you are interested in a site license, please contact me for a quote at jessica.L.tobin@gmail.com.

CCSS.Math.Content.1.OA.A.1 (1.OA.1)

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.

CCSS.Math.Content.1.OA.A.2 (1.OA.2)

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

CCSS.Math.Content.1.OA.B.3 (1.OA.3)

Apply properties of operations as strategies to add and subtract. 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.)

CCSS.Math.Content.1.OA.B.4 (1.OA.4)

Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.

CCSS.Math.Content.1.OA.C.5 (1.OA.5)

Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

CCSS.Math.Content.1.OA.C.6 (1.OA.6)

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).

CCSS.Math.Content.1.OA.D.7 (1.OA7)

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

CCSS.Math.Content.1.OA.D.8 (1.OA.8)

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.

This addition and subtraction pack is a quick no-prep go-to resource to use when teaching addition and subtraction! This is not a curriculum, but a resource to help supplement your lessons! With printables for topics such as counting on, missing addends, word problems, and more!

This item aligns to the Common Core standards for the Operations and Algebraic Thinking domain, but you don't have to be a Common Core classroom to use this pack! There are TWO sets of sheets in this pack. One set has the CCSS tag (such as 1.OA.2) and the other set comes without a tag for teachers who do not follow CCSS.

Topics Covered:

-Word Problems to 20

-3 Addend Word Problems to 20

-Addition and Subtraction Strategies

-Unknown Addends

-Addition and Subtraction Fluency

-Understanding the Equal Sign

Click

Click

Click here for OA centers.

Click here for OA interactive notebook activities.

Click here for OA short answer problems.

If you're interested in sharing with other classrooms, make sure to buy the extra licenses for 50% off through the TeachersPayTeachers tool. If you are interested in a site license, please contact me for a quote at jessica.L.tobin@gmail.com.

CCSS.Math.Content.1.OA.A.1 (1.OA.1)

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.

CCSS.Math.Content.1.OA.A.2 (1.OA.2)

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

CCSS.Math.Content.1.OA.B.3 (1.OA.3)

Apply properties of operations as strategies to add and subtract. 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.)

CCSS.Math.Content.1.OA.B.4 (1.OA.4)

Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.

CCSS.Math.Content.1.OA.C.5 (1.OA.5)

Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

CCSS.Math.Content.1.OA.C.6 (1.OA.6)

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).

CCSS.Math.Content.1.OA.D.7 (1.OA7)

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

CCSS.Math.Content.1.OA.D.8 (1.OA.8)

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.

Total Pages

55 pages

Answer Key

N/A

Teaching Duration

N/A

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