Question
PSLE
At first, Opal had 55 stamps and some erasers. After she gave away 30 stamps and 25% of the erasers, she had a total of 31 stamps and erasers. How many erasers did Opal give away?
3 m

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PSLE
At first, Opal had 55 stamps and some erasers. After she gave away 30 stamps and 25% of the erasers, she had a total of 31 stamps and erasers. How many erasers did Opal give away?