In this lesson, we will learn how to solve problems by adding three numbers with sums up to 20 and write equations to represent the problem.
Q1:
A person has 2 white puppies, 2 brown cats, and 7 black puppies. How many puppies do they have?
Q2:
William has 15 cars colored red, blue, and green.
Which of these could be his car collection?
Q3:
Find the group with 5 balloons.
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