问题 解答题
下面各题,怎样算简便就怎样算.
(8×
3
4
+6)÷
1
12
8×75%-3÷
3
4
8.5×0.75+7.5×75%
3
4
×88+
1
4
÷
1
88
1
8
÷12.5%×(
3
4
+
1
2
5
8
-
5
6
×(
1
4
+25%)
答案

(1)(8×

3
4
+6)÷
1
12

=(6+6)÷

1
12

=12×12,

=144;

(2)8×75%-3÷

3
4

=8×

3
4
-3×
4
3

=6-4,

=2;

(3)8.5×0.75+7.5×75%,

=8.5×

3
4
+7.5×
3
4

=(8.5+7.5)×

3
4

=16×

3
4

=12;

(4)

3
4
×88+
1
4
÷
1
88

=

3
4
×88+
1
4
×88,

=(

3
4
+
1
4
)×88,

=1×88,

=88;

(5)

1
8
÷12.5%×(
3
4
+
1
2
),

=

1
8
÷
1
8
×
5
4

=1×

5
4

=1

1
4

(6)

5
8
-
5
6
×(
1
4
+25%),

=

5
8
-
5
6
×(
1
4
+
1
4
),

=

5
8
-
5
6
×
1
2

=

5
8
-
5
12

=

5
24

选择题
单项选择题 A1型题