(完整)七年级数学上册有理数计算题专题复习50道(含答案),推荐文档

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2017-2018 学年七年级数学上册有理数计算题专题复习 50 道一、计算题:

1.计算:-4-28-(-19)+(-24)

2.计算:( + - )×(-24)

3.计算:

4.计算:

5.计算:100÷(-2)2-(-2).

6.计算:

7.计算:(-2.75)×(-24);8.

9.计算:-2-|-3|+(-2)210.计算:-82+3×(-2)2+(-6)÷(- )

2

11.计算:(- )2÷(- )4×(-1)6-()×48.

12.计算:

13.计算:

14.计算:

15.计算:-6+(-2)3×()÷()2÷(-3).

16.计算:25.7+(-7.3)+(-13.7)+7.3. 17.计算:(-2)3+[18-(-3)×2]÷4

18.计算:-6-4+7 19.计算:

20.计算:(-12)×(- )21.计算:-36×(- + )22.计算:(-2)3-(-13)÷(- ). 23.计算:

24.计算:25.计算:

26.计算:(-3.59)×(- )-2.41×(- )+6×(- )

27.计算:28.计算:

29. 计算:( -+)÷(-); 30.计算:

31.计算:32.计算:-22÷(-1)2- ×[4-(-5)2]

33.计算:

34.计算:

35.计算:1÷(-1)+0÷(-4)×(-2010) 36.计算:(-72)+37-(-22)+(-17)

37.计算:-22+(-33)×(- )3-12÷(-2)2.

38.计算:-14-(1-0.5)×[10-(-2)2]-(-1)3.

39.计算:-12×4-(-6)×540.计算:-0.52+

41.计算:12-(-16)+(-4)-5 42.计算:-14-×[2-(-3)2]

43.计算:3x2-3( x2-2x+1)+4 44.计算:

45.计算:(-3)4÷(1.5)2-6×(- )+|-32-9| 46.计算:-54×÷(-4 )×47.计算:48.计算:

49.计算:50.计算:

参考答案

1.解:原式=-32+19-24=-37

2.解:( + -

)×(-24)=-12-20+14=-18;

3.4.5;

4.原式=-45-35+70=-10;

5.原式=22.

6.答案为:-1;

7.(-2.75)×(-24)=-3-32+66=31;

8.-7;

9.原式=-2-3+4=-1

10.解:原式=-64+3×4-6 =-64+12-54=-52-54=-106;

11.原式= ×16×1-(×48+×48- ×48)=1-(66+64-132)=1-(-2)=3.

12. .

13.答案为:0;

14.-11

15.原式=10.

16.解:原式=25.7+7.3+[(-7.3)+(-13.7)]=33-21=12.

17.解:原式=-8+(18+6)÷4=-8+6=-2;

18.原式=-10+7=-3;

19.

20.(-12)×(-)=(-12)×+(-12)×=9+7- 10=6;

21.原式=-28+30-27=-25;

22.原式=-8+13×(-2)=-34

23.解:原式.

24.答案为:13/12.

25.答案为:-1;

26.原式=- ×(-3.59-2.41+6)=0.

27.-4

28.

29.原式=( - +)×(-36)= ×(-36)- ×(-36)+×(-36)=-8+9-2=-1.

30.原式= =-7200+10=-7190

31.

32.原式=3;

33.0;

34.-6;

35.原式=-1+0=-1

36.原式=-72+37+22-17=-89+59=-30;

37.原式=-4+(-27)×(- )-3=-4+8-3=1

38.解:原式=-1- ×[10-4]-(-1)=-1-1+1=-1.

39.原式=-48+30=-18;

40.原式=-16.

41.原式=28-4-5=19

42.答案为:

43.2x2+6x+1

44.25

45.原式=55.

46.原式=54×××=6;

47.原式=36.

48.原式=-9+6+25=22;

49.原式=-85;

50.16;

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At the end, Xiao Bian gives you a passage. Minand once said, "people who learn to learn are very happy people.". In every wonderful life, learning is an eternal theme. As a professional clerical and teaching position, I understand the importance of continuous learning, "life is diligent, nothing can be gained", only continuous learning can achieve better self. Only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of the market. This document is also edited by my studio professionals, there may be errors in the document, if there are errors, please correct, thank you!

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