小升初四则混合运算(带答案)Word文档下载推荐.doc

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小升初四则混合运算(带答案)Word文档下载推荐.doc

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=

=

9.42×

0.1=

﹣=

0.42=

1﹣+=

6.(2012•桐庐县)计算.

①92×

13+28

②4.2÷

1.5﹣0.36

③78×

④1÷

﹣÷

1

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

(+0.5)÷

2

[(﹣)÷

].

9.(2012•苏州)计算下面各题,能简算的要简算.

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÷

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×

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

(1)360+240÷

28  

(2)6÷

2.4﹣0.3×

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

(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÷

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×

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÷

18

4.72﹣1.16﹣2.84

+.

20.(2011•田东县)计算下列各题.

860﹣560÷

7

(5.9+1.65)÷

2.5

20÷

[(+)×

 (2011•瑞安市)

(1)360+24÷

30

(2)0.25×

7.2+2.8÷

0.5

29﹣8×

(4)(+﹣)÷

21.(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.(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

99+25%

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)÷

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,能简便的要简便计算

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÷

200820082009.

31.(2012•咸安区)灵活计算

④.

参考答案:

1.①428÷

(4+4)],

=428÷

8],

4,

=107;

②127×

8,

=127÷

=8×

=64

2.

(1)9080﹣35×

26,

=9080﹣910,

=8170;

(2)17÷

3.4+1.48,

=5+1.48,

=6.48;

(3)÷

(﹣)×

(+),

(×

),

=;

(4)3÷

=9×

=12÷

=3;

(5)(+)÷

+,

=+,

(6)10÷

+)],

=10÷

[﹣(+)],

[﹣],

=81

3.

(1)2004+75×

45,

=2004+4050÷

=2004+90,

=2094;

(2)(0.125×

=(1﹣0.5)×

=0.5×

=2;

(3)32%×

3.2,

=32%×

76.4+13.6×

0.32 

=0.32×

(76.4+13.6),

90,

=28.8;

(5)(﹣)×

(+),

(6)1110÷

(﹣)],

=1110÷

﹣56×

],

[24﹣21],

3,

=370

4.

(1)(108÷

18),

=18;

(2)3.5×

4.8),

=3.5×

(20.6﹣3.5),

17.1,

=59.85;

(3)(﹣)×

(+)],

[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,

=0,9.42×

0.1=0.942,

﹣=,0.42=0.16,

=,1﹣+=;

6.①92×

=1196+28,

=1224;

=2.8﹣0.36,

=2.44;

=(79﹣1)×

=79×

﹣1×

=3﹣,

=4﹣,

5,

=1×

=25;

=2﹣,

=36×

+36×

=6+24,

=30.

7.

(1)3060÷

1.04

=204﹣26,

=178;

(2)×

(3)(+)×

[+﹣],

8.

(1)99×

87+87,

=(99+1)×

87,

=100×

=8700;

(2)18.7﹣3.375﹣6.625,

=18.7﹣(3.375+6.625),

=18.7﹣10,

=8.7;

(3)5×

=5×

=6÷

(4)÷

9.①630÷

24,

=35×

=840;

②0.7+3.9+4.3+6.1,

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

=5+10,

=15;

=(16+4)×

=20×

=8;

=(7.5﹣4.5)÷

=3÷

=0.75;

=(+×

)×

=(+)×

=,

⑥[()],

()],

[],

=[],

=1

10.①14×

=1050﹣16,

=1034;

=+×

11.

(1)1379+450÷

40,

=1379+25×

=1379+1000,

=2379;

22,

=(0.2+10.8)÷

=11÷

=0.5;

(﹣),

12,

12×

=3×

12.

(1)800﹣608÷

=800﹣19×

=800﹣95,

=705;

(2)3.68﹣3.6×

0.2+0.18,

=3.68﹣0.72+0.18,

=2.96+0.18,

=3.14;

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