Mathematics, 05.01.2021 06:10 myanniespencer39

5 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 marbles.
How many marbles did she have to start?

Answers: 2

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5 CHALLENGE Sara had some marbles. She got 20 more marbles for her
birthday, and she got 30 m...