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

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Students will use disk models to understand when exchanging into the tens needs to occur to solve subtraction problems

A. Solve subtraction problems using disk models

B. Use disk models to support solving column subtraction

C. Solve column subtraction with scaffolding

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)

I. Solve column subtraction, making decisions about exchanging into the tens

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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