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小二加法(一)
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一年級有學生240人,二年級有學生232人。一年級和二年級共有學生多少人?
472
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碼頭有客貨車116輛和船30輛,還有的士52輛。碼頭內有車多少輛?
168
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549 + 50 =________
599
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快餐店上午售出241件三明治,下午售出135件三明治,今天共售出三明治多少件?
376
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803 + 123約等於多少? ________ + 100 = ________
800;900
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215 + 320 = ________
535
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