问题
解答题
能简算的要简算
|
答案
(1)248-25
-22.05,9 20
=248-(25
+22.05),9 20
=248-47.5,
=200.5;
(2)12×(
+1 4
-1 6
),1 3
=12×
+12×1 4
-12×1 6
,1 3
=3+2-4,
=1;
(3)6.25×6+3×6
+625%,1 4
=6.25×(6+3+1),
=6.25×10,
=62.5;
(4)1
×(24 17
-2 3
)+173 4
÷11 12
,17 21
=1
×14 17
+1711 12
÷11 12
,17 21
=1
×(14 17
+1711 12
),11 12
=1
×184 17
,11 6
=24.5;
(5)(9
-38 11
-15 14
)×9 14
,1 4
=(9
-5)×8 11
,1 4
=4
×8 11
,1 4
=1
.2 11