Question
PSLE
At first, Tina had 84 buttons and some cards. After she gave away 54 buttons and 30% of the cards, she had a total of 51 buttons and cards. How many cards did Tina have at first?
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PSLE
At first, Tina had 84 buttons and some cards. After she gave away 54 buttons and 30% of the cards, she had a total of 51 buttons and cards. How many cards did Tina have at first?