问题 解答题
计算.
(
3
8
-
1
6
)×48

2
17
×34×
2
17

(
5
4
+
5
12
2
15

3
4
-
3
10
÷12
答案

(1)(

3
8
-
1
6
)×48

=

3
8
×48-
1
6
×48

=18-8

=10;

(2)

2
17
×34×
2
17

=4×

2
17

=

8
17

(3)(

5
4
+
5
12
)×
2
15

=

5
4
×
2
15
+
5
12
×
2
15

=

1
6
+
1
18

=

2
9

(4)

3
4
-
3
10
÷12

=

3
4
-
3
10
×
1
12

=

3
4
-
1
40

=

29
40

问答题
选择题