In this lesson, we will learn how to solve problems by deciding whether to add or subtract and then completing equations by adding and subtracting within 100.
Q1:
14 years ago, Michael was 27 years old and Emma was 42 years old. Find the equation that shows how old Emma is today.
Q2:
Chloe and Olivia are making a robot out of blue and yellow blocks. Chloe has counted out 19 blue blocks. Olivia says they have 39 blocks in total. How many yellow blocks do they have?
Q3:
There were 98 birds in a tree. 36 flew away. How many are left?
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