Curriculum>Grade 2> Module 1>Topic B: Initiating Fluency with Addition and Subtraction Within 100

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Find the single digit number that must be added for a total of 20. At first, cube models are provided to assist in finding the missing addend. Then, just the equations are given

B. Identify a missing addend to reach a sum of 20 with and without a model of base-10 blocks

C. Solve +/- equations that do not cross a ten based on a number line model

D. Solve +/- equations within 100

E. Model and solve +/- equations across 10 using base-10 blocks

F. Solve +/- equations across 10 (Part 1)

G. Solve +/- equations across 10 (Part 2)

H. Solve +/- equations within 100

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