问题 解答题
计算:
(4
2
3
+0.75)×3
9
13
(5
4
45
-4
1
6
)÷5
8
15
÷34
2
7
答案

(4
2
3
+0.75)×3
9
13
(5
4
45
-4
1
6
)÷5
8
15
÷34
2
7

=

(
14
3
+
3
4
48
13
(
229
45
-
25
6
15
83
×
7
240

=

224
13
+
36
13
229
249
-
375
498
×
7
240

=

20
1
6
×
7
240

=120×

7
240

=3

1
2

选择题
单项选择题