Question
PSLE
Mark and Gwen have some buttons. After Mark gives 43 buttons to Gwen, he has 18 buttons more than her. How many more buttons than Gwen does Mark have at first?
2 m

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PSLE
Mark and Gwen have some buttons. After Mark gives 43 buttons to Gwen, he has 18 buttons more than her. How many more buttons than Gwen does Mark have at first?