问题 解答题
用递等式计算.
(1)370×203-19266÷38
(2)32×3.1+1÷1.25
(3)
21
26
×(39÷35)÷0.9
(4)(9-3.06÷
3
5
)×1
3
13

(5)(3-1
1
8
+1
1
7
)×1
8
13
-3
1
56
×56
(6)[(
37
40
+0.075)÷
3
25
-2
17
24
2
15
答案

(1)370×203-19266÷38,

=75110-507,

=74603;

(2)32×3.1+1÷1.25,

=9.92+0.8,

=10.72;

(3)

21
26
×(39÷35)÷0.9,

=

21
26
×
39
35
÷0.9,

=0.9÷0.9,

=1;

(4)(9-3.06÷

3
5
)×1
3
13

=(9-5.1)×1

3
13

=3.9×1

3
13

=4.8;

(5)(3-1

1
8
+1
1
7
)×1
8
13
-3
1
56
×56,

=3×56-1

1
8
×56+1
1
7
×56,

=168-49+64,

=119+64,

=183;

(6)[(

37
40
+0.075)÷
3
25
-2
17
24
2
15

=[1÷

3
25
-2
17
24
2
15

=[

25
3
-2
17
24
2
15

=

135
24
×
2
15

=

3
4

单项选择题
问答题 简答题