30.4×0.88×0.4简便运算

2026年09月28日 12:53

有2个网友回答

网友（1）：

30.4×0.88×0.4
=(30+0.4)×0.4×0.88
=(12+0.16)×0.88
=12×0.88+0.16×0.88
=10.56+0.1408
=10.7008(也并不简便！)

网友（2）：

你这是几个题
2.5×0.88×0.4
=2.5×0.4×0.88
=1×0.88
=0.88
30.4×0.88×0.4
=(10+10+10+0.4)×0.88×0.4
=10×0.352+10×0.352+10×0.352+0.4×0.352
=3.52+3.52+3.52+0.1408
=7.04+3.52+0.1408
=10.56+0.1408
=10.7008