2.4×2.5×5的简便运算

2024-11-10 06:09:45
推荐回答(3个)
回答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

回答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

回答3:

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