初一数学实数计算题附答案

实数计算题练习

1=

2．=

=

=

=

=

=

=

=

10. =

=

=

13. =

14.

()2013112+-+=

15. =

=

17. ((-=

=

=

=

2=

-=

24)

4=

25. =

=

=

=

=

2

12??

-= ???

31. ()

()2013

312014-+-?=

1120142?

?--= ??

?

33.

31

22

=

116+=

=

36. 21+=

=

+=

2

4

3

÷?=

13

+=

=

3

= 43. ()3

211250

x--= 44. ()2

4190

x--=

45. 41

x-= 46. ()361

121

64

x

+-= 47.

()3

20.1

x+=

2

= 49. 3

3

26

4

x-= 50. ()

2

2110

x+=

51. 2322

x= 52. ()3

0.70.027

x-= 53. 3

2540

x-= 54. 3

98

1

27

x+=- 55. ()29

21

8

x-=

实数计算题答案：

1.

1

4

7

2.3

- 3. 9 4.

4

5

5. 0.2

6. 0.8

7. 2

8.

2

3

-

9. 1 10.

3

2

- 11. 2 12.

11

24

-

13.

2

14.

17. 19. 23 20. -

21. 1

3

3

- 22. 60.15- 24. -1 25. 4 26. 325 27. 32

3

28.

29. 125

33. -1 34. -3 35. 1

44

36. 1-

5+2+-41. 1

2

6- 42. 5x =± 43. 3x = 44. 1

22x =,12x =- 45. 3x =5x =18x = 47. 19

50

x =

48. 13x = 49. 3

2

x = 50. 2x =± 51. 18x =±

52. 1

4

x =

53. 3x = 54. 53x =- 55. 314x =,1

4

x =