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Academic Standards: CCSS.MATH.CONTENT.1.OA.B.3

Apply properties of operations as strategies to add and subtract.2 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.)

Bowling for Numbers, K-1 (Ozobot 3D CAD Library)

Using 3D-printed bowling pins, students will take Ozobot bowling for numbers. Each attempt will provide students with the numbers needed to complete a series of subtraction and addition problems. Visit ozobot.com/3d-cad-library for all the STL files

Add It Up!

This game allows students to use an Ozobot Evo as a random number generator to choose two digits to sum. These sums range from 2-18. Students play this game by taking turns making a sum, then comparing it with the sum of their partner.