Question

6.78-(5.78-3.5)简便算？

Answer 1

这个很好计算6.78➖5.78等于1用3.5➖1就可以算出来了。

Answer 2

6.78-(5.78-3.5)
=6.78-5.78+3.5
=1+3.5
=4.5

Answer 3

回答：36.78+6.5-(13.78+3.5) =(36.78-13.78)+(6.5-3.5)、 =23+3 =26

Answer 4

回答：36.78+6.5-(13.78+3.5) =(36.78-13.78)+(6.5-3.5)、 =23+3 =26

Answer 5

回答：36.78+6.5-(13.78+3.5) =(36.78-13.78)+(6.5-3.5)、 =23+3 =26