Question

3.2×【(13-2.6)÷2+2.4】 怎么简便计算？

Answer 1

原式=3.2×(10.4÷2+2.4)
=3.2×(5.2+2.4)
=3.2×7.6
=3.2×(7+0.6)
=3.2×7+3.2×0.6
=22.4+1.92
=24.32

Answer 2

=3.2*[6.5-1.3+2.4]
=3.2*7.6
=24.32

Answer 3

像这种有括号的，按照运算规则，都是按照步骤来，先算括号最里面的。
所有：

Answer 4

你好，很高兴为您解答。

原式
=3.2×（13÷2-2.6÷2+2.4）
=3.2×（6.5-1.3+2.4）
=3.2×7.6
=3.2×（8-0.4）
=3.2×8-3.2×0.4
=25.6-1.28
=24.32

Answer 5

3.2x[（13-2.6）÷2+2.4]
=3.2x(10.4÷2+2.4)
=3.2x(5.2+2.4)
=3.2x7.6
=（3+0.2）x7.6
=3x7.6+0.2x7.6
=22.8+1.52
=24.32