Question

3.3×29-1.3×1.1的简便计算？

Answer 1

3.3×29－1.3×1.1
=1.1×(3×29－1.3)
=1.1×(87－1.3)
=1.1×85.7
=(1+0.1)×85.7
=85.7+8.57
=93.27

Answer 2

因为29＝30-1，1.1＝1+0.1，所以原式等于3.3×（30-1）-1.3×（1+0.1）运用乘法分配律得到3.3×30-3.3-1.3-0.13＝99-4.73＝94.27

Answer 3

3.3x29-1.3x1.1
=1.1x3x29-1.3x1.1
=1.1x(3x29-1.3)
=1.1x(87-1.3)
=1.1x85.7
=(1+0.1)x85.7
=85.7+8.57
=94.27

Answer 4

举例子：
3.3×29+13×1.1 简便计算
=1.1×87+13×1.1
=1.1×（87+13）
=1.1×100
=110

Answer 5

=3×1.1×29－1.3×1.1
=1.1×87－1.1×1.3
=1.1×（87－1.3）