计算下面各题,并且验算。
(1)$6.27 + 3.69 =$ (2)$15.65 - 7.23 =$
(3)$7.83 + 2.56 =$ (4)$13.54 + 5.65 =$
(5)$13.42 - 9.57 =$ (6)$9.22 + 18.37 =$
(7)$21.54 - 6.78 =$ (8)$23.13 - 11.02 =$
(1)$6.27 + 3.69 =$ (2)$15.65 - 7.23 =$
(3)$7.83 + 2.56 =$ (4)$13.54 + 5.65 =$
(5)$13.42 - 9.57 =$ (6)$9.22 + 18.37 =$
(7)$21.54 - 6.78 =$ (8)$23.13 - 11.02 =$
答案:


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