Question
Barbara had 47 more buttons than Gem at first. Gem gave 20 of her buttons to Barbara. Barbara now has 4 times as many buttons as Gem. How many buttons did Gem have at first?
2 m

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Barbara had 47 more buttons than Gem at first. Gem gave 20 of her buttons to Barbara. Barbara now has 4 times as many buttons as Gem. How many buttons did Gem have at first?