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

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Subtract two-digit numbers with regrouping using the disk model. Exchange 1 tens disk for 10 ones disks so that there will be enough ones disks to subtract

A. Represent and solve 2-digit subtraction problems without exchanging using a disk model

B. Subtract 2-digit numbers without exchanging using place value cards to subtract tens and ones separately

C. Solve 2-digit column subtraction without exchanging

D. Exchange a ten for ones using a disk model

F. Subtract 2-digit numbers with exchanging using place value cards

G. Solve 2-digit column subtraction with exchanging using a disk model

H. Solve 2-digit column subtraction with exchanging (Level 1)

I. Solve 2-digit column subtraction with exchanging (Level 2)

J. Solve 2-digit column subtraction with and without exchanging

K. Solve 2- and 3-digit column subtraction with and without exchanging ones (Level 1)

L. Solve 2- and 3-digit column subtraction with and without exchanging ones (Level 2)

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