来自刘学才的问题
【脱式计算0.876÷7.3+2.040.78÷2.6+3.5×0.424.57×3.9+54.3×0.391.25×3.94×0.8.】
脱式计算
0.876÷7.3+2.04
0.78÷2.6+3.5×0.42
4.57×3.9+54.3×0.39
1.25×3.94×0.8.
1回答
2020-04-09 11:10
【脱式计算0.876÷7.3+2.040.78÷2.6+3.5×0.424.57×3.9+54.3×0.391.25×3.94×0.8.】
脱式计算
0.876÷7.3+2.04
0.78÷2.6+3.5×0.42
4.57×3.9+54.3×0.39
1.25×3.94×0.8.
(1)0.876÷7.3+2.04=0.12+2.04=2.16; (2)0.78÷2.6+3.5×0.42=0.3+1.47=1.77;(3)4.57×3.9+54.3×0.39 =45.7×0.39+54.3×0.39=(45.7+54.3)×0.39 &n...