问题
解答题
|
答案
(1)
÷(3 7
-7 10
),1 6
=
÷3 7
,16 30
=
×3 7
,30 16
=
;45 56
(2)0.8×(3.75-0.3)÷0.1,
=0.8×3.45÷0.1,
=2.76÷0.1,
=27.6;
(3)(
-2 3
×5 3
)÷3 8
,7 16
=(
-2 3
)÷5 8
,7 16
=
÷1 24
,7 16
=
;2 21
(4)
÷(17 19
+1 4
×2 7
),7 8
=
÷(17 19
+1 4
),1 4
=
÷17 19
,1 2
=
.34 19