问题
解答题
|
答案
(1)56×(
=56× =24-21, =3; (2)9.75-3.42-5.58, =9.75-(3.42+5.58), =9.75-9, =0.75; (3)2.1×0.5÷4.2, =2.1÷4.2×0.5, =0.5×0.5, =0.25; | ||||||||||||||||||||
(4)
=( = = |
8 |
15 |
1 |
2 |
4 |
5 |
=
×11 15
,5 4
=
,11 12
(6)35÷[(
-5 6
)×3],2 3
=35÷[
×3],1 6
=35×2,
=70.