Question
PSLE
Ivan had 55 more buttons than Caden at first. Caden gave 10 of his buttons to Ivan. Ivan now has 4 times as many buttons as Caden. How many buttons did Caden have at first?
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PSLE
Ivan had 55 more buttons than Caden at first. Caden gave 10 of his buttons to Ivan. Ivan now has 4 times as many buttons as Caden. How many buttons did Caden have at first?