Addition and subtraction worksheets MASTER THE STANDARD 1.OA

Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
Addition and subtraction worksheets MASTER THE STANDARD 1.OA
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(42 MB)
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9 Products in this Bundle
9 products
    • Bundle Description
    • StandardsNEW

    These print and go worksheets cover addition and subtraction worksheets. Students determine the unknown whole number in equations. This is a bundle and will save you money. My master the standard worksheets are great for your students to get all of the practice they need to prove their understanding.

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    Log in to see state-specific standards (only available in the US).
    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 = ▯.
    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.
    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).
    Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
    Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
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    Answer Key
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    Teaching Duration
    Lifelong tool
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