2.1乘0.125简便计算

2.1乘0.125简便计算
2025-04-05 14:39:14
推荐回答(2个)
回答1:

2.1×0.125
=(2+0.1)×0.125
=2×0.125+0.1×0.125
=0.25+0.0125
=0.2625

回答2:

2.1*0.125=21/10*125/1000=21/80