Question

2.4×2.5×5的简便运算

Answer 1

2.4×2.5×5的简便运算
=0.4x6x2.5x5
=0.4x2.5x6x5
=1x6x5
=30

希望能帮到你，望采纳

Answer 2

2.4×2.5×5
= 0.6 x 4 x 2.5 x 5
= 0.6 x 5 x (4 x 2.5 )
= 3 x 10
= 30
特别注意记住， 25 x 4 = 100，所以看到题目中有25， 2.5， 0.25 之类的数，要想到和4相乘

Answer 3

2.4*2.5*5=0.4*6*2.5*5=(0.4*2.5)*(6*5)=30