Standard Alignments:

TEKS Math: 1.3.D

(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: K.OA.5

K.OA.5 Fluently add and subtract within 5.

2.OA.2

2.OA.2 Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.