问题
解答题
|
答案
(1)
÷11 3
×5 6
,15 11
=
×11 3
×6 5
,15 11
=6;
(2)
÷5+7 15
×0.8,7 15
=
×7 15
+1 5
×0.8,7 15
=
×(7 15
+0.8),1 5
=
×(0.2+0.8),7 15
=
×1,7 15
=
;7 15
(3)(2-0.6)÷
,7 15
=1.4×
,15 7
=3;
(4)4÷(
+1 2
×3 4
),1 5
=4÷(
+1 2
),3 20
=4÷
,13 20
=4×
,20 13
=
;80 13
(5)
×9+11÷11 19
-19 11
,11 19
=
×9+11×11 19
-11 19
,11 19
=
×(9+11-1),11 19
=
×19,11 19
=11;
(6)
×0.375÷2 9
,6 7
=
×2 9
×3 8
,6 7
=
.1 14