问题
解答题
|
答案
解(1)
×5 6
+5 9
×5 9
,1 6
=(
+5 6
)×1 6
,5 9
=1×
,5 9
=
;5 9
(2)3-
÷6 13
-9 26
,2 3
=3-
-4 3
,2 3
=3-(
+4 3
),2 3
=3-2,
=1;
(3)(0.75-
)×(3 16
+2 9
),1 3
=
×9 16
,5 9
=
.5 16
|
解(1)
×5 6
+5 9
×5 9
,1 6
=(
+5 6
)×1 6
,5 9
=1×
,5 9
=
;5 9
(2)3-
÷6 13
-9 26
,2 3
=3-
-4 3
,2 3
=3-(
+4 3
),2 3
=3-2,
=1;
(3)(0.75-
)×(3 16
+2 9
),1 3
=
×9 16
,5 9
=
.5 16