Addition and Subtraction to 10

Unit Review Sheet

Facts and Definitions

Lesson 1: Getting Ready to Add and Subtract

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Lesson 2: What Are = and 0?

• =: sign that means amounts are equal or the same
• 0: zero, the number that means nothing or no quantity

Lesson 3: Getting on Board with Addition

• Addition: the process of adding numbers together or finding the total of numbers
• +: plus sign, mathematical symbol for addition

Lesson 4: More Practice with Addition

• Commutative property of addition: math law that states that the order of numbers does not matter when adding; also known as "turn-around facts"

Lesson 5: Finding Differences

• Subtraction: the process of finding differences between numbers
• -: minus sign, mathematical symbol that means we subtract, take away, or find the difference

Lesson 6: Adding and Subtracting to Solve Problems

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Final Project: My Sticker Book

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