1) Ahmed has 20 marbles. Salem has 10 marbles. Ali has18 marbles. How many marbles do they have in all? a) b) c) 2) Saif bought 17 sweets. Noura bought 13 sweets. Meera bought 14 sweets. How many sweets do they have in all? a) b) c) 3) Reem has 11 books. Sara has 9 books. Salama has 10 books. How many books do they have altogether?  a) b) c)

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