2.(25+300)÷5

3.25+75÷5+75

4.200-(35+48÷24)

5.(72+32×4)÷40

6.45+55-45+55

7.2-2×0+2

8. 10- 10÷ 10× 10

9.(75+25÷5)-40

10.2800÷25×4+80

1 1.2800÷25×4+80

12.(380-80×4)÷60

13.20- 16÷4+3×2

14.(20- 16)÷4+3×2

15.( 1520- 150)÷60-40

16.( 1520- 150)÷(60-40)

17.448×26+ 17523÷297

18.3600-(58+ 1872÷24)

19.48230÷( 150+37× 16)

20. 1000÷(850-25×26)+44

2 1.(7344÷72+98)×43

22.(905+985)÷(203- 168)

23.24×36-32 13÷9

24.(378- 158)÷(38+72)

25.726+824÷8-409

26. 120×3÷5

27. 120÷3÷5

28.78x 10 1- 178

29. 178 x 10 1- 17

30. 178x 10 1-78

3 1.3 × 49 - 4

32.8 × 156 + 17

33. 12× 5 – 9 ×3

34.8× 4 + 4

35.6÷ 38 – 38 ÷6

36.47 × 59 + 37 × 9

37.52 -( 32 + 45 )

38.78 + ( 1/8 + 1/9 )

39.9 × 56 + 56

40.34 × 89 - 13

4 1.7 × 549 + 34

42.6 ×( 12 + 3 )

43.8 × 5 + 8 × 1 15

44.3 1 × 56 – 56

45.97 - ( 27 – 102 1 )

46.59 × 18 – 14 × 27

47.45 × 25 16 + 23 × 34

48. 14 × 87 – 56 × 125

49. 1732 – 34 × 94

50.3 × 29 + 13

5 1.57 × 325 + 37

52.3 14 × 23 + 16

53. 15 × 23 + 56

54.922 + 1 1 1 ÷ 12

55.53 × 1 15 + 43

56.45 × 23 + 13 × 15

57.79 + 129 × 56

58. 14 + 34 ÷ 23

59.7 × 2 1 16 + 12

60. 10 1 × 15 – 15 × 2 1

6 1.50+(58+370)×(64-45)

62. 120- 148+35

63.347+45×2-4 160

64(58+37)×(64-9×5)

65.95×(64-45)

66. 178- 145+42 420+580-64×2 1

67.8 12-9+3 1× 1 1

68.85+ 14×( 14+208)

69.(284+ 16)×(5 12-8208)

70. 120-36×4+35

7 1.(58+37)×(64-9×5)

72.(68-68×55)÷85

73. 12× 12×48

74.32× 15+25

75.6-+785-37=

1m = () decimeter

1000 cm = () mm

55 mm = () decimeter

4.3 km = () decimeter

1 hour = () minutes = () seconds

360 minutes = () hours = () seconds

765m2 = () km2 = () km2

1 Celsius = () Fahrenheit = () Kelvin

1085mm2 = () square decimeter = () square meter

1085 cubic meters = () cubic kilometers

1 hectare = () hectare = () square kilometer

1 km = () Li = () m