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CCSS.Math.Content.K.NBT.A.1

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (e.g., 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

Common Core (CCSS) · referenced by 2 topics

Read the source standard · A topic reference does not certify complete coverage. Prerequisite, review and enrichment topics may be assigned to a different grade from the standard.

Related lesson topics

• Comparing Numbers 0-10Kindergarten · math
• Teen Numbers: Tens and OnesKindergarten · math