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Addition and Subtraction within 20 - Achieve the Core

Fluently add and subtract within 20 using mental strategies. By end of grade 2, know from memory all sums of two one- digit numbers. achievethecore.org 2.OA.B.2 Fluency Mini-Assessment : Addition and Subtraction within 20 . Name: Date: 9 + 3 = 12 – 7 = 8 + 6 = ...