Question
PSLE
At first, Erika had 70 coins and some buttons. After she gave away 40 coins and 25% of the buttons, she had a total of 45 coins and buttons. How many buttons did Erika give away?
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PSLE
At first, Erika had 70 coins and some buttons. After she gave away 40 coins and 25% of the buttons, she had a total of 45 coins and buttons. How many buttons did Erika give away?