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Grade 1 · NBT

Subtract Multiples of 10

Subtract a multiple of ten from a two-digit number (e.g. 70 − 30 = 40).

Grade 1Common Core 1.NBT.C.6NBTVerified correct ✓

Worked examples

20 − 20 = ?
Answer: 0
80 − 60 = ?
Answer: 20

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