Mathematics Standards of Learning for Virginia Public Schools (2023)

1.CE.1e

74bf4892-26f1-43bd-ac9e-1e3928cf0d10 › 2ebc0c3f-f1ec-46ce-a458-aea3f7a2bd11 › 1.CE › 1.CE.1 › 1.CE.1e

Solve addition and subtraction problems within 20 using various strategies (e.g., inverse relationships: if 9 + 3 = 12 then 12 - 3 = 9; decomposition using known sums/differences: 9 + 7 can be thought of as 9 decomposed into 2 and 7, then use doubles, 7 + 7 = 14; 14 + 2 = 16 or decompose the 7 into 1 and 6; make a ten: 1 + 9 = 10; 10 + 6 = 16).

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