Curriculum>Grade 2> Module 4>Topic B: Column Addition with Exchanging into the Tens

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Students practice column addition with two digit addends. First, students transform horizontal equations into the column format

A. Identify and build numbers using 10s and 1s on a place value chart

B. Use a place value chart to add 2-digit numbers

C. Solve 2-digit column addition without exchanging using a place value chart model

E. Add 2-digit numbers without exchanging (Part 2)

F. Exchange 1s for 10s on a place value chart when necessary

G. Solve 2-digit column addition with regrouping with the support of a place value chart model

H. Solve 2-digit column addition with regrouping using the standard algorithm

I. Add 2-digit numbers with exchanging (Part 1)

J. Add 2-digit numbers with exchanging (Part 2)

K. Practice the standard algorithm for addition with regrouping with step by step support (Part 1)

L. Practice the standard algorithm for addition with regrouping with step by step support (Part 2)

M. Practice column addition with one 3-digit and one 2-digit addend

N. Practice the standard algorithm of 2-digit column addition with regrouping (Part 1)

O. Practice the standard algorithm of 2-digit column addition with regrouping (Part 2)

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