数学题4.16✘8+0.416✘20能用简便方法吗

Question

如题所述

Answer 1

能用简便方法，这种某个数数字相同，只是小数点位置不同，往往通过移动小数点，化成相同的数，再进行简便运算。
4.16×8+0.416×20
=4.16×8+4.16×2
=4.16×(8+2)
=4.16×10
=41.6

Answer 2

4.16×8+0.416×20
=0.416×80+4.16×0.1×20
=0.416×（80+20）
=0.416×100
=4.16×（8+2）
=41.6

或者
4.16×8+0.416×20
=4.16×8+4.16×0.1×20
=4.16×8+4.16×2
=4.16×（8+2）
=4.16×10
=41.6本回答被网友采纳

Answer 3

解，4.16x8+0.416x20
=4.16x8+4.16x2
=4.16x(8+2)
=4.16x10
=41.6

Answer 4

0.416 = 4.16 x 0.1
4.16 x 8+0.416 x 20=4.16 x （8+0.1 x 20）=4.16 x 10=41.6

Answer 5

4.16×8+0.416×20
=4.16×8+4.16×2
=4.16×（8+2）
=4.16×10
=41.6