(4.5X7.5X9.6)/(1.5X2.5X2.4)= 用简便计算

分类: 作业答案 • 2022-01-07 12:04:29

问题描述：

答

(4.5X7.5X9.6)/(1.5X2.5X2.4)
={4.5X（7.5X9.6)}/{1.5X（2.5X2.4)}
={4.5X72}/{1.5X6}
=324/9
=36

答

(4.5X7.5X9.6)/(1.5X2.5X2.4)
= （1.5*3*2.5*3*2.4*4）/（1.5X2.5X2.4）
=（36*1.5*2.5*2.4）/(1.5X2.5X2.4)
=36*(1.5X2.5X2.4)/(1.5X2.5X2.4)
=36

答

(4.5X7.5X9.6)/(1.5X2.5X2.4)
= （4.5/1.5）x (7.5/2.5) x (9.6/2.4)
= 3 x 3 x 4
= 36

答

=4.5∕1.5×7.5／2.5×9.6／2.4
＝3×3×4
＝36