Curriculum>Grade 2> Module 4>Topic C: Column Subtraction with Exchanging into the Tens

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Students will solve column subtraction problems by making decisions about whether or not exchanging into the tens is a necessary step

A. Solve subtraction problems using disk models

B. Use disk models to support solving column subtraction

C. Solve column subtraction with scaffolding

D. Use disk models to practice exchanging into the tens

E. Solve subtraction problems with regrouping (Level 1)

F. Solve subtraction problems with regrouping (Level 2)

G. Solve subtraction problems with regrouping (Level 3)

H. Solve subtraction problems with regrouping (Level 4)

J. Practice solving column subtraction problems independently (Part 1)

K. Practice solving column subtraction problems independently (Part 2)

L. Solve column subtraction problems with 2- and 3-digit components (Level 1)

M. Solve column subtraction problems with 2- and 3-digit components (Level 2)

N. Solve column subtraction problems with 2- and 3-digit components (Level 3)

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