Question
PSLE
Hazel had rubber balls for sale. In the morning, she sold 310 of the rubber balls. In the afternoon, she sold 27 of the remaining rubber balls. After that, there were 40 rubber balls left. How many rubber balls did Hazel have at first?
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PSLE
Hazel had rubber balls for sale. In the morning, she sold 310 of the rubber balls. In the afternoon, she sold 27 of the remaining rubber balls. After that, there were 40 rubber balls left. How many rubber balls did Hazel have at first?