UT Math K-6: K.NBT.1

CodeHS Lessons

Compose and decompose numbers from 11–19 into ten ones and some further ones. Use objects or drawings and record each composition or decomposi- tion by a drawing or equation. For example, 18 = 10 + 8. Understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

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