问题
解答题
|
答案
×5 8
=2 5
; 1 4
×4 21
=7 8
;0.9×1 6
=3 4
;27 40
39×
=3;1 13
×8 15
=9 10
; 80×12 25
×3 4
=20.1 3
|
×5 8
=2 5
; 1 4
×4 21
=7 8
;0.9×1 6
=3 4
;27 40
39×
=3;1 13
×8 15
=9 10
; 80×12 25
×3 4
=20.1 3