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Read the word problem below. Antonio has a total of 55 marbles. He has 15 green marbles and 12 red marbles. The rest of the marbles are blue. How many blue marbles does he have? A student solves this problem
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Read the word problem below.

Antonio has a total of 55 marbles. He has 15 green marbles and 12 red marbles. The rest of the marbles are blue. How many blue marbles does he have?

A student solves this problem by writing an equation. Which strategy could help check the student’s answer?

User Duce
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6.8k points

1 Answer

2 votes
B=55-15-12

B=28

So there are 28 blue marbles.

Check...

B+G+R=55

28+15+12=55

55=55
User Thmslmr
by
6.9k points
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