问题
解答题
根据比例的基本性质.在横线里填上合适的数. (1)______:4.5=0.4:9 (2)
(3)
(4)
(5)
(6)______:0.5=
|
答案
(1)4.5×0.4÷9=0.2;
(2)0.3×32÷4=2.4;
(3)
×7 9
÷3 5 1 2
=
÷7 15 1 2
=
;14 15
(4)12×3÷18=2;
(5)
×8÷41 12
=
÷42 3
=
;1 6
(6)0.5×
÷1 4 1 16
=
÷1 8 1 16
=2.
故答案为:0.2;2.4;
;2;14 15
;2.1 6