Ôn tập + -

The price of the strawberry is 20p. The price of the lemon is 13p less than the price of the strawberry. How much does the lemon cost?

Cửa hàng A có 31 con chim. Cửa hàng B có 18 con chim. Cả hai cửa hàng co bao nhiêu con chim?

96 + 45 =

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