Question

3.3×0.47+0.33×4.2+0.033×11怎么简便运算？

Answer 1

3.3×0.47+0.33×4.2+0.033×11这样简便运算
运用乘法分配律
3.3×0.47+0.33×4.2+0.033×11
=3.3×0.47+3.3×（0.1×4.2）+3.3×（0.01×11）
=3.3×0.47+3.3×0.42+3.33×0.11
=3.3×（0.47+0.42+0.11）
=3.3×1
=3.3
扩展资料：
乘法分配律：
两个数相加(或相减)再乘另一个数，等于把这个数分别同两个加数（减数）相乘,再把两个积相加（相减），得数不变。
用字母表示：　　
（a+b）× c=a×c+b×c
变式：
（a-b）× c=a×c-b×c

Answer 2

解:
3.3×0.47+0.33×4.2+0.033×11
=3.3×0.47+3.3×0.42+3.3×0.11
=3.3×(0.47+0.42+0.11)
=3.3
即为所求。

Answer 3

3.3x0.46+3.3x0.42+3.3x0.11
=3.3x(0.46+0.42+0.11)
=3.3x(1-0.01)
=3.3-0.033
=3.267

Answer 4

=0.033×47+0.033×42+0.033×11
=0.033×(47+42+11)
=0.033×100
=3.3