Question

(2.3 0.46)×1.6怎么简算？

Answer 1

（2.3-0.46）×1.6
=（2-0.16）×1.6
=2x1.6-1.6×0.16
=3.2-0.16x0.4x4
=3.2-0.064x4
=3.2-0.24-0.016
=3-0.056
=2.944

Answer 2

原题应该是落下了一个符号没写，我假设小括号里是+号，用简便方法运算一下。
(2.3+0.46)X1.6
=2.76X1.6
=2x1.6+0.7X1.6+0.06X1.6
=3.2+1.12+0.096
=4.416
(2.3+0.46)x1.6
=(2+0.3+0.4+0.06)x1.6
=2x1.6+0.3x1.6+0.4x1.6+0.06x1.6
=2x1+2x0.6+0.3x1+0.3x0.6+0.4x1+0.4x0.6+0.06xl+0.06x0.6
=2+1.2+0.3+0.18+0.4+0.24+0.06+0.036
=4.416