Combining Numbers 1.oa.3
by My Little Penguins © 2019
Price: $1.5 USD
Subjects: math
Grades: 13,1,2
Description
No prep! Self-checking boom cards for combining numbers when adding. These 22 cards are in random order and will allow students to practice combining numbers when adding within 20. See the preview for a sample and see my store for many more decks! 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.)
Acknowledgements
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