是有理数乘法混合运算题(1/3+1/4-1/6)×24(-4)×(-5)×0.25100×(-3)×(-5)×0.01(1/9-1/6-1/18)×36(1/4-1/2-1/8)×128[9×(-4)]×(1/4)2.25×(-2.3)×3/25(-2.1)×6.5×(-3/7)
问题描述:
是有理数乘法混合运算题
(1/3+1/4-1/6)×24
(-4)×(-5)×0.25
100×(-3)×(-5)×0.01
(1/9-1/6-1/18)×36
(1/4-1/2-1/8)×128
[9×(-4)]×(1/4)
2.25×(-2.3)×3/25
(-2.1)×6.5×(-3/7)
答
(1/3+1/4-1/6)×24
=(7/12-1/6)×24
=5/12×24
=10
答
10
5
15
-4
-48
-9
0.621
429/140
答
1/3*24+1/4*24-1/6*24 (-4)*0.25*(-5)10
5
15
-4
-48
-9
0.621
429/140