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Standards/Math/Northern Mariana Islands/2.NBT.B.6

2.NBT.B.6

2.NBT.B Use place value understanding and properties of operations to add and subtract.
2.NBT.B.5
2.NBT.B.6
2.NBT.B.7
2.NBT.B.8
2.NBT.B.9

Add up to four two-digit numbers using strategies based on place value and properties of operations.

Khan Academy Resources
Adding up to four 2-digit numbers word problemsAdding up to four 2-digit numbersAdding multiple 2-digit numbers word problemsSubtracting 1s using place valueSubtracting 10s using place valueAdding four two digit numbers
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