问题
解答题
|
答案
(1)24-24×
,5 6
=24-20
=4,
(2)5÷
×9 10
,3 5
=5×
×10 9
,3 5
=
,10 3
(3)4×
÷5 12
,5 9
=4×
×5 12
,9 5
=3,
(4)70.8-1.25-1.75,
=70.8-(1.25+1.75),
=70.8-3,
=77.8,
(5)
×3.8-3.8×11 9
,2 9
=3.8×(
-11 9
),2 9
=3.8×1,
=3.8.
(6)(
+3 8
)÷2 3
,1 24
=(
+3 8
)×24,2 3
=
×24+3 8
×24,2 3
=9+16,
=25.