问题
填空题
12:______=1÷______=
|
答案
(1)
=3÷5=(3×4):(5×4)=12:20;3 5
(2)
=3:5=(3÷3):(5÷3)=1:3 5
=1÷5 3
;5 3
(3)
=3 5
=3×5 5×5
;15 25
(4)
=0.6=60%.3 5
故答案为:20,
,15,60.5 3
12:______=1÷______=
|
(1)
=3÷5=(3×4):(5×4)=12:20;3 5
(2)
=3:5=(3÷3):(5÷3)=1:3 5
=1÷5 3
;5 3
(3)
=3 5
=3×5 5×5
;15 25
(4)
=0.6=60%.3 5
故答案为:20,
,15,60.5 3