脱式计算。
0.25×0.63×40 2.5×0.9+1.8×0.6 4.5+5.5×5.6
86×1.01 8.8×1.25 3.56×39+7.44×39-39
0.25×0.63×40 2.5×0.9+1.8×0.6 4.5+5.5×5.6
86×1.01 8.8×1.25 3.56×39+7.44×39-39
简便计算。
45.55-(6.82+15.55) 34.52-17.87-12.23 4.57+3.17+3.43+5.83
23.75-8.64-3.36 17.83-9.5-7.83-0.5 3.45+8.7+16.55+1.3
8.54-5.96-2.04 27.38-5.34+2.62-4.66 21.63-(8.5+9.63)
45.55-(6.82+15.55) 34.52-17.87-12.23 4.57+3.17+3.43+5.83
23.75-8.64-3.36 17.83-9.5-7.83-0.5 3.45+8.7+16.55+1.3
8.54-5.96-2.04 27.38-5.34+2.62-4.66 21.63-(8.5+9.63)