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In this lesson, we will learn how to add two-digit numbers by regrouping ten ones as a one ten when the sum of ones is more than ten.
Q1:
Look at how Maged added 32 to 27 by adding 3 tens and then 2 ones.
Use number lines to find the answers to these sums.
Q2:
Mona is adding using a number line.
Pick the sum she is working on.
Find the answer.
Q3:
Skip count forward by 5s to add 5.
What is 9 + 5 ?
What is 1 4 + 5 ?
What is 1 9 + 5 ?
Q4:
3 2 + 5 1 = .
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