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Mathematics / Equations involving Addition and Subtraction

Mathematics / Equations involving Addition and Subtraction

1.OA.7. 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.
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 = _.

Exercises
Topics
Exercises
Topics
• Addition and Subtraction - Equations

Tags : Fill in numbers to complete the equation, missing addend, equal equations, commutative and associative property.

• Questions: 15
• Equations involving Addition and Subtraction