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In this lesson, we will learn how to model adding a multiple of one hundred to a three-digit number and investigate which digits in the number change.
Students will be able to
Q1:
Find the total by first adding the hundreds.
Q2:
Q3:
Look at how Amelia broke apart a number to help her add.
First, add the hundreds.
300+400=.
Then, add the hundreds to 19 to find the total.
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