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CHALLENGE Sara had some marbles. She got 20 more marbles for her birthday, and she got 30 marbles at the store. Now Sara has 100 martha marbles did she have to start?

CHALLENGE Sara had some marbles. She got 20 more marbles for her birthday, and she got 30 marbles at the store. Now Sara has 100 martha marbles did she have to start?
asked 214k views
21 votes
CHALLENGE Sara had some marbles. She got 20 more marbles for her

birthday, and she got 30 marbles at the store. Now Sara has 100 martha
marbles did she have to start?

asked
User Aelgoa
by
7.7k points

2 Answers

0 votes

Answer: 50 marbles

Step-by-step explanation: 100-(30+20)=50

answered
User Dave Keane
by
8.8k points
7 votes

Answer:

50

Explanation:

a + 30 + 20=100

100-30=70

70-20=50

answered
User Shersh
by
8.0k points
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