小升初真题四则混合运算题

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2021年01月24日 06:44
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大学英语2课后答案-青春年少

2021年1月24日发(作者:李思彤)
小升初真题混合运算专项练习(有答案)
1
.(
2012
瑶海区)基 本计算:


428
÷
[32
÷(
4+4

]
127
×
8
÷
127
×
8


2
.(
2012
武胜县)计算.

9080

35
×
26



17
÷
3.4+1.48




÷(

)×(
+


3
÷
÷
÷
4



+
)÷
+




10
÷
[
﹣(
÷
+

]


3.(
2012
武胜县)计算,能简算的要简算.
2004+75
×
54
÷
45






0.125
×
8

0.5
)×
4

32%
×
76.4+1.36
×
3.2





×
+
÷






)×(
+



1110
÷
[56
×(


]
4
.(
2012
武胜县)计算.


108
÷
25
)×(
75
÷
18


3.5< br>×(
20.6

16.8
÷
4.8




)×(
+








×
[7

4
÷(
+

]


5
.(
2012
万州区)计算:

9

5.4=780
÷
26=
3.14
×
3=27
×
=
625

199=10+0.1=
0
÷
=9.42
×
0.1=

=0.4
2
=
1
÷
=1

+
=
6
.(
2012
桐庐县)计算.


92
×
13+28

4.2
÷
1.5

0.36

78
×


1
÷

÷
1

×
5
÷
×
5

2

÷


36
×(
+


7
.(
2012
天柱县)脱式计算.

3060
÷
15

25
×
1.04
×
÷
+


+
)×(
÷
5


×
[
﹣(


]


8
.(
2012
桃源县)脱式计算.

99
×
87+87
18.7

3.375

6.625
5
×(
+0.5
)÷
2

÷
[


)÷
]


9
.(
2012
苏州)计算下面各题,能简算的要简算.

630
÷< br>18
×
24


0.7+3.9+4.3+6.1

16
×
+4
×

④(
7.5

7.5
×
0.6
)÷
4

⑤(
+
÷
3
)×


⑥.

10
.(
2012
顺昌县)脱式计算.(能简算的要 简算)

14
×
75

624
÷
39

÷
9+
×


+


)÷


÷
[
﹣(
1


]


11
.(
2012
泉州)用递等式计算


1

1379+450
÷
18
×
40




2


3.2
÷
16+10.8
)÷
22

3

×
+
×


4

×
÷(



12
.(
2012
硚口区)
脱式计算.
(友情提醒:有的可以
简算)< br>
800

608
÷
32
×
5

3.68

3.6
×
0.2+0.18

48
×
9.9+48
×
0.1

1

)÷
0.25
×
4

6

6
×
)÷
12


13
.(
2012
吉水县)脱式计算,能简算的要简算.

97
÷
1+35.6+0
×
6

1375+450
÷
15
×
25
[4.5+
(< br>13
×
+13
×

]
÷


48
×
+48
×
+48
×
8

94.47
﹣(
94.47

86.555



3.42
×
76.3+76.3
×
5.76+9.18< br>×
23.7


14
.(
2012
洪山区)
能简便的要用简便方法计算,写出
主要过程


1

360+240
÷
15
×
28





2

6
÷
2.4

0.3
×< br>1.4

3

×
6+6
×



4



0.4
)÷
×

15
.(
2012
凤阳县)用递等式计算,能简算的要简算


1

43
×
8

420
÷15

2

+2
+
+3


3

×
÷
15

4


+
)÷



5

3.9
×
9.77+0.23
×
3.9

6

+


)×


16
.(
2011
漳州)计算下面各题,怎样简便就怎样计
算.

420
÷
216
÷
18
×
17

25
×
12.5
×
32
×
+
÷

40
÷
[
×(
+

]
17
.(
2011
游仙区)用自己喜欢的方法算


315+285
)÷(
315

255


5
﹣(
÷
+



+

)×
36
3.3
×
+0.75< br>×
3.7+75%
×
3


18
.(
2011
永州)下面各题,怎样简便就怎样计算.

405
×(
20

172
÷
43



×
+
×

17.31

6.15

3.85
÷
[
×(


]


19
.(
2011
武昌区)递等式计算:

360

225
÷
15
×
18

÷
×

4.72

1.16

2.84

+
÷
+


20
.(
2011
田东县)计算下列各题.

860

560
÷
8
×
7


5.9+1.65
)÷
2.5

+
)×
20
÷


÷
[

+
)×
]


21
.(
2011
瑞安市)


1

360+24
÷
15
×
30
2

0.25
×
7.2+2.8
÷
0.5

3

×
29

8
×


4


+

)÷


22
.(
2011
南县)
下面各题,能简算的要简算.
(能简
算的要写出主要简算过程)

109
×
x+109
×
x

9.5
﹣(
4.6+5.8
)÷
1.3
23


2011
金堂县)
用自己喜欢的方式计算下面各题(要
写出主要的解答过程)


1

3600

800
÷
40
×
35

2

64

15.8

14.2

3



4



5



6

38
÷
[2.5
×(
4.36+3.64

]


24< br>.

2011
淮南)
选择合适的方法计算
(要写出主要的计算过程).

6760
÷
13+17
×
21
3.33
×
4.5+4.5
×
6.67


25
.(
2011
河西区)脱式计算.(能简算的要简算)

53
×
13+21
1.65
×
45+55
×
1.65
÷
[1
﹣(
+

]


26
.(
2011
河池)用你喜欢的方法计算.

25
×
12

850
÷
17
0.25
×
99+25%
6
÷
7



)×
13+4
÷
17


27
.(
2011
海州区)神机妙算:

2842
÷
14+74
×
3
÷(



3.6
×
99+3.6
÷(
×


×
+
÷

72
×(



28
.(
2011
丰都县)脱式计算


384+336
)÷
15
×
13

11+30.6
)÷
16+16.5
2

×



1
﹣(
+

〕÷


29
.(
2010
自流井区)计算,能简便的要简便


73.6
÷
0.16+370
)×
18
3.84
÷
+5.16
×



30

2010
雨花区)
计算下列各题,能简便的要简便计

3618
÷
45+1620
67

67
×(
23+19


200.8
×
73

6.3
×
2008
118
÷(
14+2.5
×
45


99

97+95

93+91

89+

+ 7

5+3

1
2008
÷

31
.(
2012
咸安区)灵活计算











32
.(
2012
仙游县)神机妙算:


+
)×(



×
+
÷

÷〔


)×
3



+
)×
12=
33
.(
2012
万州区)怎样算简便就怎样算.


520+2613
÷
13

×
5
×

③(
+
)÷
+

④(
+

)÷


÷
62.5%+
×


34
.(
2012
遂昌县)用递等式计算.


[1
﹣(
+

]
×
36
②(
+
)×
36

7.5
×
4.7+4.7
×
2.5

25.3
×
12

33.46
÷
0.35

×
[
÷(
1


]

+


)÷


35
.(2012
绍兴县)递等式计算(能简便的要简算)
+
÷


×
+
÷


156
×

26
)×

2012+558
÷
18
×
24
3.87+1.44

0.87+0.56
35
×(
1

)÷


36
.< br>(
2012
平坝县)
用递等式计算,能简算的要简算.

÷

×

13.54

6.88

3.12

+
)÷
+


37
.(
201 2
陕西)
13
×
1
+86.6
÷


38.

2012
瑞安市)脱式计算,能简算的要简算.

÷
5+

÷


+

)×
18



39.

2012
乐清市)直接写得数.


+0.375=
9
×(
0.5


=

=
12
×(
+

=
÷
2
÷
=
9


=
2
÷

÷
2=
90.5
×
99+90.5=

0.125
×
0.25
×
32=
40.

2012
金沙县)脱式计算,能简算的要简算

[25
﹣(

)×
12]
÷
5

×
+
×

99
×
101
1.25
×
32
×
2.5
4.3
×
6. 7+0.67
×
67

6.7


41.

2012
建华区)计算下面各题.

657+360
÷
45
×
19

21
×

28.6
﹣(
12.6+18.4
)÷
1.6


)÷


42
.(
2012
河池)计算 下面各题,怎样简便就怎样计
算.

×
+
+


×


÷

÷
13


43
.(
2012
河池)计算下面各题,怎样简便就怎样计
算.


44.

2012
汉阳区)选择合适的方法计算.

2929
÷
29
×
34

1422
÷
÷


+

)×
24
﹣(
+
)÷

45.

2012
海港区)脱式计算


+
)÷
+

9
÷
[1
﹣(

]


1.02
÷(
5+0.4
×
0.25


46.

2012
福州)用递等式计算,能简算的要简算


+

=
2

÷
×
=
÷
[56
×(


]

÷
[1
÷(


]
47.

2012
福州)计算下面各题,能简便的要简便.

4
÷
1.25
÷
8
×(
÷


+
÷

÷〔
1
﹣(




×
+
×

48.

2011
沿滩区)计算.

8470

104
×
65



0.6
×(
5.3

1.7
)÷
0.9



5.2
÷
0.8
×
6+42


÷(

)×



[
﹣(


]
÷


49.

2011
新邵县)下面各题,怎样算简便就怎样算


50
.(
2011
厦门)计算:


1


+
)÷
+


2

[1
﹣(
+

]
÷


3

×

×


51.

2011
龙湾区)用递等式计算,能简便的要用简便
方法计算.

÷
×
5
÷
9+
×

5
×(

)÷

48
×(
+



52
.(
2011
嘉禾县)用递等式计算下面各题:


15

14
×
)×

21
×(


53.

2011
滑县)怎样简便就怎样算

+
×
3
5


0.125
÷
+
×

[
﹣(


]
÷


54.
2011
福州)计算下列各题.(能简算的写出简算
过程)


1

4.27
×
+4.73
÷
8+
,< br>

2


2.3+2.3+2.3+2.3
)×< br>2.5


55
.(
2011
福安市)下面各题怎么简便怎么算.

×(

)÷


78
÷
[32
× (
1


+144]


×

×


0.32
×
2.5
×
0.125


56
.(
2011
东莞)选择你喜欢的方法进行计算:

×
27


÷(
1

)×

9
×
4.25+4
×


6

3
)÷(
13+11


57


2011
毕节地区)
计算下面各题,要写出计算的主
要过程



58.

2011
巴中)计算下面各题,注意使用简便运算.

×
÷

1


÷
÷

2



3


15

14
×
)×

×
+
×

4


÷
[

+
)×
]

5


6



÷


59.

2011
北海)


60
.(
2010
重庆)计算下面各题,能简算和要简算.


+
)÷

×(
+


6.28+5.74+3.72+5.26
61
.(
2012
康县)计算.(能简算的要简算)

1.9

1.9
×(


÷

×
[1
﹣(


]
48
×

85
×

÷
23+
×


62< br>.

2012
姜堰市)
计算下面各题,能简便计算的用简
便方 法计算.

4.82

5.2
÷
0.8
×
0.6
[
﹣(


]
÷

×
+
×

12.3
×
99
57.5

14.25

15

3.2
×
12.5
×
0.25

63.

2012
丰润区)用最喜欢的方法计算


12.5
×
38
×
0.8


8.5< br>﹣
4
)×(
0.32
÷
1.6


6.5
×
4.6+6.5
×
15.4

÷
[
]


64.

2012
东城区)脱式计算.

0.6+32
×
0.25

6

÷
[

+
)×
]


65
.(
2012
城厢区)计算下面各题,能简算的要简算


96
×(
72

14.4
)÷
3.6
②(
+
+
)×
12

×
36+36
×


[
﹣(


]
÷


66
.(
2011
温江区)计算.


1

22.7

1.8+17.3

18.2

2

3899+3737
÷
37

3

385
×
6
÷
385
×
6

4



5



6

38.4
×
13+30.8
×
26


67.

2011
满洲里市)

计算下面各题,能简算的要简算.

6.8

1.36

0.64


2.5
×
73
)×
0.4
+

+

0.25+
+
+

32 .5
×
1.7+32.5
×
9.3

32.5
.< br>
68.

2011
建华区)计算下面各题.

13.5
﹣(
6.9+6.1
)÷
2.6
15
×

573+900
÷
36
×
15


)÷
+


69.

2011
邗江区)脱式计算.


2.8+4.6
)×(
2.6

2
.)

0.25
×(
32+64
)÷
0.6
÷
[
×(


]
×
[1
﹣(


]


70.

2010
云龙县)用递等式计算.


3.6

2.8+6.4

7.2



③(
6.9

3.15
)÷
0.3< br>×
0.8


÷(
×
)﹣
1


71.
(< br>2010
徐闻县)计算下列各题,能简算的要简算

1
)(
) ×
36



2

5.28
﹣(
2.56+0.44

+1.72


3



4

25
×
12.5
×
32


5
)(
5

4.75
)÷(
2
×
2.5

3




6
27
÷
7+43
×(
1



72.

2010
霞浦县)怎样算简便就怎样算.

20.3
×
16

4560
÷
15

2.5
×
0.125
×
32
6.3
×


73.

2010
双阳区)


1
40.5
÷
0.81

16
×
2.4


2

÷
[
×(




3

6.72
÷
1.2

4

18.1

5.7

4.3+1.9

5

3.8
×
4.2+38
×
0.58


6

1.25
×
9

1.2 5


74.

2010
曲周县)选择你喜欢的方法计算.

3.6

2.8+6.4

7.2

6.3
×
+13.7
÷
15


÷(
+
)×

×
17+
×
23
75.

2010
萝岗区)计算.(写出解答过程,能应简便
方法的要用简便 方法)


1


0.125
×
8

0.5
)×
4


2


+
)÷



3

907+907
×
9

900


4

9
÷
[
+



]
76


2010
龙湾区)
用递等 式计算,怎样简便就怎样算

1

3.7

2.2+7.3

7.8

2

375+450
÷
18
×
25

3

2.9
×
+1.1
×


4

÷(



77.

2010
龙海市)选择合适的方法,计算下面各题.

18.7

4.375

6.625

920
÷
40

23
×
50
12
×(
+



4.4
×
+ 3.6
÷
1
+0.75
×
2

78.

2010
乐清市)


1

4.5
×
9.9+0.1



2

16

+




3

1.25
×
2.5
×
3.2


4

8.1
÷(
9

6.3×
1.4
);


5

59+59
×
13+14
×
41


79
.(
2009
重庆)脱式计算.

30.5

40
÷
8
×
2.4
1.6
×
+
÷
2.4
8.5+[

﹣< br>0.005
×
700
)÷
]
[2
﹣(

1.5
)÷
]
×


80.

2009
宜昌)用自己喜欢的方法计算.

205

105
×
12
÷
45

1.05
×(
3.8

0.8
)÷
6.3


+
)÷


+
)÷
50%


884
÷
34+17
×
21

3.75
×(
1.2


+


81
.(
2009
淇滨区)计算:

45.78+45.78
×
99
3.6

2.8+7.4

7.2
×
67+33
×


82
.(
2009< br>成都)
1
÷
2.5+2.5
×
0.4+1


83.

2008
资中县)用递等式计算(能简算的请简算)


7.6

4.8+8.4

5.2

4
×
0.8
×
2.5
×
1.25


×
+
÷


1375

375
÷
15
×
18


1.05
×(
3.8

0.8
)÷< br>6.3


×〔


)÷


84
.(
2008
武进区)用递等式计算:


0 .6

0.2
×
1.9
÷
7.6



5
÷

×



1.02÷(
5+0.4
×
0.25
);


÷(
+
)×



3
÷
×(

).

85

2008
汕头)
混合运算.
(能简便的要写简便过程)
4.5
×
8.8

2.2
×
4.5

4.5

38

15.4+0.125

4.6





86
.(
2008
邗江区)用递等式计算,能简算的要简算


1

18

10.4
÷(
6.2
﹣< br>4.9



2





3

2



4

3.6
÷
0.4+1.3
×
5 < br>(
5

[6.85
﹣(
0.75+0.2

]
÷
0.5

6

÷
[56
×(

]


87
.(
2008
广西)灵活计算下面各题


1

54.75

5.25

14.75


2

16.4
÷(
4.3
×
2
0.4



3

1.25
×
32


4

×
[1
﹣(


] 88


2008
大足县)脱式计算
(其中④、⑤两小题必须< br>简算).


730

240
÷
15
×
16

[2.06
﹣(
1.73

0.29

]×
1.5

÷
[

+
)×
]

6.8+2.37+7.63+4.2

×
17
÷9+3
÷
8
×


89.

2007
浦东新区)


1

13.72

1.65

2.35

2

2.4+3.6
÷
1.2
×
0.2

3


12.5+1.25
)×
0.8

4

5.4
×
7.2+2.8
×
5.4

5

2
÷(
1.2

0.4
×
2.5



6

0.3
×
[< br>(
13.4

10
)÷
0.5+1.5]


90


2008
长汀县)用递等式计算
(能简算的要用简 便
方法计算).


20




9.07
×
99+9.07

+
×
÷
2

2.3+3.91
÷(< br>22

19.7



×
[
﹣(


]


参考答案:

1
.①
428
÷
[32
÷(
4+4

]


=428
÷
[32
÷
8]


=428
÷
4


=107



127
×
8
÷
127
×
8


=127
÷
127
×
8
×
8


=8
×
8


=64
2
.(
1

9080

35
×
26


=9080

910


=8170



2

17
÷
3.4+1.48


=5+1.48


=6.48



3

÷(

)×(
+
),
=
÷
×< br>,

=
×(
×
),

=
×


=



4

3
÷
÷
÷
4


=9
×
÷
4


=12
÷
4


=3



5


+
)÷
+


=
×


=
+


=



6

10
÷
[
﹣(
÷
+

]

=10
÷
[
﹣(
+

]


=10
÷
[

]


=10
÷


=81
3
.(
1

2004+75
×
54
÷
45


=2004+4050
÷
45


=2004+90


=2094



2


0.125
×
8

0.5
)×4


=

1

0.5
)×
4


=0.5
×
4


=2


(< br>3

32%
×
76.4+1.36
×
3.2


=32%
×
76.4+13.6
×
0.32

=0.32
×(
76.4+13.6
),

=0.32
×
90


=28.8



4

×
+
÷


=
+


=



5



)×(
+
),

=
×


=



6

1110
÷
[56
×(


]


=1110
÷
[56
×

56
×
]


=1110
÷
[24

21]


=1110
÷
3


=370
4
.(< br>1


108
÷
25
)×(
75
÷
18
),
=
×


=18

< br>(
2

3.5
×(
20.6

16.8÷
4.8
),
=3.5
×(
20.6

3.5
),

=3.5
×
17.1


=59.85



3



)×(
+
),

=
×


=



4

×
[7

4
÷(
+

]






=
×
[7

4
÷
]


=
×
[7

4
×
]


=
×
[7

5]


=
×
2


=


5

9

5.4=3.6

780
÷
26=30


3.14
×
3=9.42

27
×
=15


625

199=426

10+0. 1=10.1


0
÷
=0

9.42
×
0.1=0.942



=

0.4
2
=0.16


1
÷
=

1

+
=


6
.①
92
×
13+28
=1196+28


=1224



4.2
÷
1.5

0.36
=2.8

0.36


=2.44



78
×

=

79

1
)×


=79
×

1
×


=3



=2



1
÷

÷
1
=4



=3



×
5
÷
×
5
=
×
5
×
5


=1
×
5
×
5


=25



2

÷

=2



=



36
×(
+


=36
×
+36
×


=6+24


=30


7
.(
1

3060
÷
15

25
×
1.04
=204

26


=178



2

×
÷
+

=
×
+


=
+


=



3


+
)×(
÷
5


=
×
×


=



4

×
[
﹣(


]


=
×
[
+

]


=
×


=


8
.(
1

99
×
87+87


=

99+1
)×
87


=100
×
87


=8700


2

18.7

3.375

6.625< br>,

=18.7
﹣(
3.375+6.625
),

=18.7

10


=8.7


3

5
×(
+0.5
)÷
2

=5
×
÷
2


=6
÷
2


=3



4

÷
[


)÷
]


=
÷
[
÷
]


=
÷


=


9
.①
630
÷
18
×
24


=35
×
24


=840



0.7+3.9+4.3+6.1


=

0. 7+4.3

+

6.1+3.9
),

=5+10


=15



16
×
+4
×


=

16+4
)×


=20
×


=8


④(
7. 5

7.5
×
0.6
)÷
4


=

7.5

4.5
)÷
4


=3
÷
4


=0.75


⑤(
+
÷
3
)×


=

+
×
)×


=

+
)×


=


=



[


]


=
×
[
÷(

]


=
×
[
]


=
[
]


=


=1
10
.①
14
×
75

624
÷
39
=1050

16


=1034



÷
9+
×

=
×
+
×


=

+
)×


=
×


=



+


)÷

=
+
×


=
+


=



÷
[
﹣(
1


]


=
÷
[

]


=


=


11
.(
1

1379+450< br>÷
18
×
40

=1379+25
×
40< br>,

=1379+1000


=2379



2


3.2
÷
16+10.8
)÷
22

=

0.2+10. 8
)÷
22


=11
÷
22


=0.5



3

×
+
×


=

+
)×


=1
×


=



4

×
÷(

),



=
×
÷


=
×
×
12


=
×
12
×


=3
×


=


12
.(1

800

608
÷
32
×
5

=800

19
×
5


=800

95


=705



2

3.68

3.6
×
0.2+0.18< br>,

=3.68

0.72+0.18


=2.96+0.18


=3.14


3

48
×
9.9+48
×
0.1


=48
×(
9.9+0.1
),

=48
×
10


=480



4


1

)÷
0.25
×
4


=0.25
÷
0.25
×
4


=1
×
4


=4



5


6

6
×
)÷
12
,< br>
=

6

4
)÷
12


=2
÷
12


=


13.(
1

97
÷
1+35.6+0
×
6
=97+35.6+0


=132.6



2

1375+450
÷
15
×
25
=1375+30
×
25


=1375

750


=625

< br>(
3

[4.5+

13
×
+13
×

]
÷

=[4.5+

13
×
×
2

]
÷


=[4.5+9.75]
÷


=14.25
×


=8.55


(< br>4

48
×
+48
×
+48
×
8
=

+
+8
)×
48


=9
×
48


=432



5

94.47
﹣(
94.47

86.555< br>)

=94.47

94.47+86.555


=0+86.555


=86.555


(< br>6

3.42
×
76.3+76.3
×
5.76+9 .18
×
23.7
=

3.42+5.76
)×
76.3+9.18
×
23.7


=9.18
×
76.3+9.18
×
23.7


=

76.3+23.7
)×
9.18


=100
×
9.18


=918
14
.(
1

360+240
÷
15
×
28


=360+16
×
28


=360+448


=808



2

6
÷
2.4

0.3
×
1.4


=2.5

0.42


=2.08



3

×
6+6
×


=

+
)×
6


=1
×
6


=6



4



0.4
)÷
×


=
÷
×


=
×


=

15
.(
1

43
×
8
420
÷
15


=344

28


=316



2

+2
+
+3


=

+

+

3
+2
),

=1+6


=7



3

×
÷
15


=
×


=



4


+
)÷



=
×



=



=



5

3.9
×
9.77 +0.23
×
3.9
=3.9
×(
9.77+0.23
),

=3.9
×
10


=39



6

+


)×


=
+
×


=
+


=


16
.(
1

420
÷< br>216
÷
18
×
17

=
÷
18< br>×
17


=
×
17


=



2

25
×
12.5< br>×
32


=25
×
12.5
×
8
×
4


=

25
×
4
)×(
12.5
×
8
),

=100
×
100


=10000



3

×
+
÷


=
×
+
×


=

+
)×


=1
×


=



4

40
÷
[
×(
+

]


=40
÷
[
×
]


=40
÷


=80
17
.(
1


315+285
)÷(
315

255
),

=600
÷
60


=10



2

5
﹣(
÷
+
),

=5
﹣(
4
),

=5

4



=



3


+

)×
36

=
×
36+
×
36

×
36


=9+6

12


=3



4

3.3
×
+0.75
×
3.7+75%< br>×
3


=

3.3+3.7+3
)×
0.75


=10
×
0.75


=7.5
18
. ①
405
×(
20

172
÷
43
),< br>
=405
×
16


=6480



×
+
×


=
×(
+
),

=



17.31

6.15

3.85


=17.31
﹣(
6.15+3.85
),

=17.31

10


=7.31



÷
[
×(


]


=
÷
[
×
]


=
×


=3
19
.(
1
)< br>360

225
÷
15
×
18


=360

15
×
18



=360

270


=90



2

÷
×


=
×


=



3

4.72

1.16

2.84


=4.72
﹣(
1.16+2.84
),

=4.72

4


=0.72



4

+
÷
+


=
+
+


=
+
+


=1+


=1


20

860

560
÷
8
×
7
=860

70
×
7


=860

490


=370



5.9+1.65
)÷
2.5
=7.55
÷
2.5


=3.02

+
)×
20
÷

=

×
20+
×
20


=

15+16
)×


=31
×


=21


÷
[

+
)×
]


=
÷
[
×
]


=


=


21
.(
1

360+24
÷
15
×
30

=360+
×
30
,< br>
=360+48


=408


2

0.25
×
7.2+2.8
÷
0.5
,< br>
=1.8+5.6


=7.4



3

×
29

8
×


=
×(
29

8
),

=
×
21


=9



4


+

)÷


=

+

)×
24


=
×
24+
×
24

×
24


=20+21

10


=41

10


=31
22
.(1

109
×
x+109
×
x


=

109+109
)×
x


=218x



2

9.5
﹣(
4.6+5.8
)÷
1.3

=9.5

10.4
÷
1.3


=9.5

0.8


=8.7



3



=
÷
+


=
+


=



23
.(
1

3600

800
÷
40
×
35

=3600
20
×
35


=3600

700


=2900



2

64

15.8

14.2


=64
﹣(
15.8+14.2
),

=64

30


=34



3


=

40

27
)×






=13
×


=9



4



=
×
36

×
36+
×
36


=15

6+14


=9+14


=23



5



=

18

5+1
)×


=14
×


=9



6
38
÷
[2.5
×(
4.36+3.64

]

=38
÷
[2.5
×
8]


=38
÷
20


=1.9
24
.(< br>1

6760
÷
13+17
×
21


=520+357


=877



2

3.33
×
4.5+4.5
×
6.67
=

3.33+6.67
)×
4.5


=10
×
4.5


=45



3


+
)÷(



=


=



4


=12
÷
[
×
]


=12
÷


=48


25
. (
1

53
×
13+21


=689+21


=710



2< br>)
1.65
×
45+55
×
1.65


=1.65
×(
45+55
),

=1.65
×
100


=165

< br>(
3

÷
[1
﹣(
+

]


=
÷
[1

]


=


=


26
.(
1

25
×
12

850
÷
17


=300

50


=250



2

0.25
×
99+25%


=0.25
×(
99+1
),

=0.25
×
100


=25



3

6
÷
7



=



=



4


)×
13+4
÷
17


=
×
13+
×
13+4
÷
17


=
+
+


=
+

+
),

=
+1


=2


27
.(< br>1

2842
÷
14+74
×
3
=284 8
÷
7
÷
2+74
×
3


=203+222


=425



2

÷(



=
×
12


=10



3

3.6
×
99+3.6
=

99+1
)×
3.6


=100
×
3.6


=360



4

÷(
×



=
×


=



5

×
+
÷

=
×
+
×


=

+
)×


=1
×


=



6

72
×(



=72
×

72
×


=40

30


=10
28
.(1


384+336
)÷
15
×
13


=720
÷
15
×
13


=48
×
13


=624



2


11+30.6
)÷
16+16.5
,< br>
=41.6
÷
16+16.5


=2.6+16.5


=19.1



3

2

×



=2




=2
﹣(
+
),

=2

1


=2



4

[1
﹣(
+

]
÷


=[1

]
÷


=
÷


=


29
.(
1


73.6
÷
0.16+370
)×
18< br>,
=

460+370
)×
18


=830
×
18


=14940

< br>(
2

3.84
÷
+5.16
×


=3.84
×
+5.16
×


=

3.84+5.16
)×


=9
×


=12



3



=7.35


0.35



=

7.35

0.35
)﹣(
+
),

=7



=6



4

2.5
×(
+
+
+
),

=2.5
×(
×
4
),

=

2.5
×
4
)×


=10
×


=


30
.(< br>1

3618
÷
45+1620


=80.4+1620


=1700.4



2

67

67
×(
23+19
),
=67
×(
1

23

19
),

=67
×(﹣
41
),

=

2747



3

200 .8
×
73

6.3
×
2008

=2008
×
7.3

6.3
×
2008
,< br>
=

7.3

6.3
)×
2008


=1
×
2008


=2008



4

118
÷(
14+2.5
×
45
),

=118
÷(
14+112.5
),

=118
÷
126.5


=



5

99

97+95

93+91

89+

+7

5+3

1

=2+2+

2+2


=2
×
25



大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少


大学英语2课后答案-青春年少