问题
填空题
|
答案
(
-7 8
)÷1 2
,1 2
=
×2,3 8
=0.75,
=75%;
(
-7 10
)÷1 5
,7 10
=
×5 10
,10 7
=
,5 7
≈0.714,
=71.4%;
答:
吨比7 8
多75%,1 2
吨比1 5
吨少71.4%.7 10
故答案为:75,71.4.
|
(
-7 8
)÷1 2
,1 2
=
×2,3 8
=0.75,
=75%;
(
-7 10
)÷1 5
,7 10
=
×5 10
,10 7
=
,5 7
≈0.714,
=71.4%;
答:
吨比7 8
多75%,1 2
吨比1 5
吨少71.4%.7 10
故答案为:75,71.4.