问题
解答题
|
答案
(1)
×12=43 8
;1 2
(2)
÷5 7
=10 21
;3 2
(3)0.9-
=0.8;1 10
(4)12×
×3 4
=2;2 9
(5)
÷2÷4 7
=2;1 7
(6)(
-2 3
)×12=5.1 4
|
(1)
×12=43 8
;1 2
(2)
÷5 7
=10 21
;3 2
(3)0.9-
=0.8;1 10
(4)12×
×3 4
=2;2 9
(5)
÷2÷4 7
=2;1 7
(6)(
-2 3
)×12=5.1 4