0.36×1.5-0.45的简便算法?

2025-04-05 19:43:30
推荐回答(1个)
回答1:

简便方法如下:
0.36×1.5-0.45
=0.36×1.5-1.5×0.3
=1.5×(0.36-0.3)
=1.5×0.06
=0.09
另一方法如下:
0.36×1.5-0.45
=0.36×(1+0.5)-0.45
=0.36+0.18-0.45
=0.54-0.45
=0.09