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4.8除以括号6乘以0.5的脱式计算怎么写

4.8÷[(1.48+0.52)×0.5] =4.8÷(0.5X2) =4.8÷1 =4.8

2.5x0.6一1.8X0.5 =2.5×0.6-0.6×1.5 =0.6×(2.5-1.5) =0.6

3.15除以(6.07+2.53)乘以0.5 =3.15÷8.6×0.5 ≈0.18

64x0.25x0.5x1.25 =4x2x8x0.25x0.5x1.25 =(4x0.25)x(2x0.5)x(8x1.25) =1x1x10 =10

(8.1÷0.4+0.5)×0.6 =(8÷0.4+0.1÷0.4+0.5)×0.6 =(20+0.25+0.5)×0.6 =20×0.6+0.25×0.6+0.5×0.6 =12+0.15+0.3 =12.45

1.5

240

解:1.8/0.5 =(1.8*2)/(0.5*2) =3.6/1 =3.6

脱式计算 6.8X0.75÷0.5 =5.1÷0.5 =10.2

0.95 +6.8×0.5 =0.95+3.4 =4.35

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