完整小升初四则混合运算带答案doc.docx

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完整小升初四则混合运算带答案doc.docx

完整小升初四则混合运算带答案doc

 

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:

①428÷[32÷(4+4)]

②127×8÷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×(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=

 

﹣=

2

0.4=

1÷=

 

1﹣+=

 

6.(2012?

桐庐县)计算.

①92×13+28

②4.2÷1.5﹣0.36

③78×

 

④1÷﹣÷1

 

⑤×5÷×5

 

⑥2﹣÷

 

⑦36×(+)

 

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.

10.①630÷18×24

②0.7+3.9+4.3+6.1

③16×+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)

①14×75﹣624÷39

②÷9+×

 

③+(﹣)÷

 

④÷[﹣(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)×÷(﹣)

 

(2012?

硚口区)脱式计算.(友情提醒:

有的可以简算)

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.

 

(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+(13×+13×)]÷

 

48×+48×+48×8

 

94.47﹣(94.47﹣86.555)

3.42×76.3+76.3×5.76+9.18×23.7.

12.(2012?

洪山区)能简便的要用

简便方法计算,写出主要过程13.

(1)360+240÷15×28

 

(2)6÷2.4﹣0.3×1.4

 

小升初真题混合运算----1

(3)×6+6×

 

(4)(0.4)÷×.

 

15.(2012?

阳)用等式算,能算的要算

(1)43×8420÷15

(2)+2++3

 

(3)×÷15

 

(4)(+)÷

 

(5)3.9×9.77+0.23×3.9

(6)+()×.

 

16.(2011?

漳州)算下面各,怎便就怎算.

420÷216÷18×17

25×12.5×32

×+÷

 

40÷[×(+)]

 

17.(2011?

游仙区)用自己喜的方法算

18.(315+285)÷(315255)

5(÷+)

 

(+)×36

 

3.3×+0.75×3.7+75%×3.

 

19.(2011?

永州)下面各,怎

便就怎算.

20.405×(20172÷43)

×+×

 

17.316.153.85

÷[×()].

 

21.(2011?

武昌区)等式算:

360225÷15×18

÷×

 

4.721.162.84

+÷+.

 

22.(2011?

田)算下列各.

23.860560÷8×7

 

(5.9+1.65)÷2.5

(+)×20÷

 

÷[(+)×].

 

(2011?

瑞安市)

(1)360+24÷15×30

(2)0.25×7.2+2.8÷0.5

(3)×298×

 

(4)(+)÷.

 

24.(2011?

南)下面各,能

算的要算.(能算的要写出主要算程)

25.109×x+109×x

9.5(4.6+5.8)÷1.3

 

23.(2011?

金堂)用自己喜的方式算下面各(要写出主要的解答程)

(1)3600800÷40×35

(2)6415.814.2

(3)

 

(4)

 

(5)

 

(6)38÷[2.5×(4.36+3.64)].24.(2011?

淮南)合适的方

法算(要写出主要的算程).

6760÷13+17×21

3.33×4.5+4.5×6.67

 

 

25.(2011?

河西区)脱式算.(能

算的要算)

53×13+21

1.65×45+55×1.65

÷[1(+)].

 

26.(2011?

河池)用你喜的方法

算.

25×12850÷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)脱式算

(384+336)÷15×13

(11+30.6)÷16+16.5

 

〔1(+)〕÷.

 

29.(2010?

自流井区)算,能便的要便

(73.6÷0.16+370)×18

3.84÷+5.16×

 

 

30.(2010?

雨花区)算下列各

,能便的要便算

3618÷45+1620

6767×(23+19)

200.8×736.3×2008

118÷(14+2.5×45)

9997+9593+9189+⋯+75+3

1

2008÷200820082009.

31.(2012?

咸安区)灵活算

 

 

 

小升初真题混合运算----2

④.

 

参考答案:

1.①428÷[32

÷(4+4)],

(3)(

﹣)×(

+),

=428÷[32÷8]

=10÷,

=428÷4,

=81

=107;

3.

(1)2004+75×54÷45,

②127×8÷127×8,

=2004+4050÷45,

=127÷127×8×8,

=2004+90,

=8×8,

=2094;

=64

(2)(0.125×8﹣0.5)×4,

2.

(1)9080﹣35×26,

=(1﹣0.5)×4,

=9080﹣910,

=0.5×4,

=8170;

=2;

(2)17÷3.4+1.48,

(3)32%×76.4+1.36

×3.2,

=5+1.48,

=32%×76.4+13.6×0.32

=6.48;

=0.32×(76.4+13.6),

(3)÷(﹣)×(+

),

=0.32×90,

=28.8;

=÷×,

(4)×+÷,

=

×(

×

),

=

+,

=

×

=

=

(5)(

﹣)×(

+),

(4)3÷÷÷4,

=×,

=9×÷4,

=

=12÷4,

(6)1110÷[56×(

﹣)],

=3;

(5)(+)÷+,

=1110÷[56×﹣56×],

=

×

=1110÷[24﹣21],

=1110÷3,

=

+

=370

=

4.

(1)(108÷25)×(75÷18),

=

×

(6)10÷[

﹣(÷+

)],

=18;

=10÷[

﹣(

+)],

(2)3.5×(20.6﹣16.8÷4.8),

=3.5×(20.6﹣3.5),

=10÷[

],

=3.5×17.1,

=59.85;

=×,

 

=;

 

(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﹣

+=;

 

6.①92×13+28

=1196+28,

=1224;

②4.2÷1.5﹣0.36=2.8﹣0.36,

=2.44;

③78×

 

=(79﹣1)×,

 

=79×﹣1×,

 

=3﹣,

 

=2;

 

小升初真题混合运算----3

④1÷﹣÷1=4﹣,

 

=3;

 

⑤×5÷×5

 

=×5×5,

 

=1×5×5,

=25;

⑥2﹣÷

 

=2﹣,

 

=;

 

⑦36×(+)

 

=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,

=18.7﹣(3.375+6.625),

=18.7﹣10,

=8.7;

(3)5×(+0.5)÷2,

 

=5×÷2,

 

=6÷2,

 

=3;

(4)÷[(﹣)÷],

 

=÷[÷],

 

=÷,

 

=.

9.①630÷18×24,

=35×24,

=840;

②0.7+3.9+4.3+6.1,

=(0.7+4.3)+(6.1+3.9),

=5+10,

=15;

③16×+4×,

 

=(16+4)×,

 

=20×,

 

=8;

④(7.5﹣7.5×0.6)÷4,

=(7.5﹣4.5)÷4,

=3÷4,

=0.75;

⑤(+÷3)×,

 

=(+×)×,

=,

 

=;

 

⑥[()],

 

=×[÷()],

 

=×[],

 

=[],

 

=,

 

=1

10.①14×75﹣624÷39=1050﹣16,=1034;

 

②÷9+×

 

=×+×,

 

=(+)×,

 

=×,

 

=;

 

③+(﹣)÷

 

=+×,

 

=+,

 

=;

 

④÷[﹣(1﹣)].

 

=÷[﹣],

 

=,

 

=.

 

11.

(1)1379+450÷18×40,=1379+25×40,=1379+1000,

=.=(+)×,

=2379;

(2)(3.2÷16+10.8)÷22,

 

小升初真题混合运算----4

=(0.2+10.8

)÷22,

(2)1375+450÷15×25

=11÷22,

=1375+30×

25,

=0.5;

=1375﹣750

(3)×

=625;

(3)[4.5+

(13×

+13×)]÷

=(+)×,

=[4.5+(13××2)]÷,

=1×,

=[4.5+9.75]÷,

=;

=14.25×,

(4)×÷(

﹣),

=8.55;

=

×÷

(4)48×

+48×

+48×8

=

××12,

=(

++8)×48,

=

×12×,

=9×48,

=432;

=3×,

(5)94.47﹣(94.47

﹣86.555)

=94.47﹣94.47+86.555

=

=0+86.555,

=86.555;

12.

(1)800﹣608÷32×5,

(6)3.42×76.3+76.3

×5.76+9.18

=800﹣19×5,

×23.7

=800﹣95,

=(3.42+5.76

)×76.3+9.18×23.7,

=705;

=9.18×76.3+9.18×23.7,

(2)3.68

﹣3.6×0.2+0.18,

=(76.3+23.7

)×9.18,

=3.68﹣0.72+0.18

=100×9.18,

=2.96+0.18,

=918

=3.14;

14.

(1)360+240÷15×28,

(3)48×9.9+48×0.1,

=360+16×28,

=48×(9.9+0.1),

=360+448,

=48×10,

=808;

=480;

(2)6÷2.4

﹣0.3×1.4,

(4)(1﹣)÷0.25×4,

=2.5﹣0.42,

=2.08;

=0.25÷0.25×4,

(3)×6+6×,

=1×4,

=4;

=(+)×6,

(5)(6﹣6×)÷12,

=1×6,

=(6﹣4)÷12,

=6;

=2÷12,

(4)(﹣0.4)÷×,

=

13.

(1)97÷1+35.6+0×6

=

÷×,

=97+35.6+0,

=×,

=132.6;

=

 

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÷216÷18×17,

=÷18×17,

 

=×17,

 

=;

 

(2)25×12.5×32,

=25×12.5×8×4,

=(25×4)×(12.5×8),

=100×100,

=10000;

 

小升初真题混合运算----5

(3)×

+÷,

=;

=(15+16)×

+

×,

③17.31﹣6.15﹣3.85,

=17.31﹣(6.15+3.85

=31×

),

=(+

)×

=17.31﹣10,

=21;

=7.31.

÷[(+)×].

=1×,

④÷[×(﹣)],

=÷[

×],

=;

 

(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%×3,

 

=(3.3+3.7+3)×0.75,

=10×0.75,

=7.5

 

18.①405×(20﹣172÷43),

=405×16,

=6480;

②×+×,

 

=×(+),

=

÷[

×

],

=

=

×

=3

=

21.

(1)360+24÷15×30,

19.

(1)360﹣225÷15×18,

=360+×30,

=360﹣15×18,

=360﹣270,

=360+48,

=90;

=408;

(2)÷×

(2)0.25×7.2+2.8

÷0.5,

=1.8+5.6,

=

×

=7.4;

(3)×29﹣8×,

=

(3)4.72﹣1.16﹣2.84,

=

×(29﹣8),

=4.72﹣(1.16+2.84

),

=

×21,

=4.72﹣4,

=0.72;

=9;

(4)+÷+,

(4)(+﹣)÷

=++,

=(+﹣)×24,

=

+

+

=

×24+×24﹣

×24,

=1+

=20+21﹣10,

=41﹣10,

=1

=31

20.860﹣560÷8×7

=860﹣70×7,

22.

(1)109×x+109×x,

=860﹣490,

=(109+109)×x,

=370;

=218x;

(5.9+1.65

)÷2.5

(2)9.5﹣(4.6+5.8

)÷1.3,

=7.55÷2.5,

=9.5﹣10.4÷1.3,

=3.02

=9.5﹣0.8,

(+

)×20÷

=8.7;

(3)

=(×

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