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In this lesson, we will learn how to use compensation to add two numbers within 100.
Q1:
We can find easier sums to help us add.
Find the missing number.
What is 5 4 + 1 8 ?
Q2:
3 students have been practicing drawing models to solve problems.
Adam says, “the same number makes all of our sums correct”.
Is this true or false?
What number makes the sums correct?
Q3:
Fill in the blank: 1 1 + 3 = + 8 .
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