Subtract Numbers by Counting Down

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Standard Alignments:

(D) Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10

AU Math: ACMNA015

(Y1) Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts (ACMNA015)

CCSS Math: 1.OA.5

1.OA.5 Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

Special Programs:

StepUP Math Sample - Grade 1