Question

13.2*7.8-3.2*0.78怎么简算？

Answer 1

题目有误？如是:
13.2×7.8-32×0.78 则
=13.2×7.8-3.2×7.8
=(13.2-3.2)×7.8
=10×7.8
=78
如题目无误，则
=13.2×7.8-0.32×7.8
=(13.2-0.2)×7.8-0.12×7.8
=10×7.8+3×7.8-0.1×7.8-0.02×7.8
=78+23.4-0.78-0.156
=101.4-0.936
=100.464 还不如 直接计算

Answer 2

13.2*7.8-3.2*0.78
＝132*0.78-3.2*0.78
＝（132-3.2）*0.78
＝128.8×0.78

Answer 3

简便计算:(13.2-3.2）*0.78就行了吧啊啊啊啊

Answer 4

13.2*7.8-3.2*0.78
＝132*0.78-3.2*0.78
＝（132-3.2）*0.78
＝128.8×0.78
=100.464

Answer 5

13.2*7.8-3.2*0.78简算
＝13.2*7.8-0.32*7.8

＝（13.2-0.32）*7.8
＝12.88*7.8
＝100.464