In this lesson, we will learn how to add two numbers by breaking them apart and combining them to give us numbers that are easier to add.
Q1:
We can find easier sums to help us add.
Find the missing number.
What is 54+18?
Q2:
Match the calculations which have the same answer.
Hint: What happens when you subtract the green ones from one addend and add them to the other?
Q3:
Think about adding 47 and 15.
Pick a calculation that has the same answer.
Find the answer.
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