8.40.25简算原式：8.40.25

分类: 作业答案 • 2021-12-19 15:54:27

问题描述：

8.4*0.25简算原式：8.4*0.25

答

8.4*0.25
=（8+0.4）*0.25
=8*0.25+0.4*0.25
=2+0.1
=2.1

答

8.4×0.25=8.4×1/4=8.4/4=2.1

答

（8+0.4）*0.25=8*0.25+0.4*0.25 结果自己算

答

8.4*0.25
=2.1*4*0.25
=2.1*1
=2.1

答

8.4×0.25
=（8+0.4）×0.25
=8×0.25+0.4×0.25
=4×0.25×2+0.4×0.25
=1×2+0.1
=2+0.1
=2.1

8.4*0.25简算 原式：8.4*0.25