脱式计算,能简算的必须简算.
12.5×0.25×320 4.57×0.36+4.57×0.64 103×2.4
78.6÷12.5÷0.8 48×0.25×5 15.72÷(3.8﹣3.2×0.75)
脱式计算,能简算的必须简算.
12.5×0.25×320 4.57×0.36+4.57×0.64 103×2.4
78.6÷12.5÷0.8 48×0.25×5 15.72÷(3.8﹣3.2×0.75)