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0.56x7.8%0.56x5.8脱式计算

12.5x0.56x0.4x0.8x1250 =(12.5×0.8)×(0.4×1250)×0.56 =10×500×0.56 =5000×0.56 =280

3.14×102 = 3.14x(100+2) =3.14x100+3.14x2 =314+6.28 =320.28 0.125×7.41×80 = 0.125x80x7.41 =10x7.41 =74.1 (3.2+0.56)÷0.8 =3.2÷0.8+0.56÷0.8 =4+0.7 =4.7

6.8直接一步

0.56×202 =0.56×(200+2) =0.56×200+0.56×2 =112+1.12 =113.12

0.56x101 =0.56x(100+1) =0.56x100+0.56 =56+0.56 =56.56

0.56除以8等于多少用分数的脱式计算来解答 解: 0.56÷8 =56/100×1/8 =7/100

如图

0.56X(7.8-5.8)=1.12

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