Matemáticas de quinto grado Volumen 2 Suma, resta, multiplicación y división Aritmética elemental

2,8/9 × 15/36 1/27

3,12 × 5/6 – 2/9 ×3

4,8× 5/4 1/4

5,6÷ 3/8 – 3/8 ÷6

6,4/7 × 5/9 3/7 × 5/9

7.5/2 -( 3/2 ​​​​4/5 )

8.7/8 ( 1/8 1/9 )

9.9 × 5/ 6 5 /6

10.3/4 × 8/9 - 1/3

11.7 × 5/49 3/14

12.6 ×( 1/2 2/ 3 )

13,8 × 4/5 8 × 11/5

14,31 × 5/6 – 5/6

15,9/7 - ( 2 /7 – 21/10 )

16,5/9 × 18 – 14 × 2/7

17,4/5 × 25/16 2/3 × 3/4

18,14 × 8/7 – 5/6 × 12/15

19,17/32 – 3/4 × 9/24

20,3 × 2/9 1/3< /p >

21,5/7 × 3/25 3/7

22,3/14 ×× 2/3 1/6

23,1/5 × 2/3 5/ 6

24,9/22 1/11 ÷ 1/2

25,5/3 × 11/5 4/3

26,45 × 2/3 1/3 × 15

27,7/19 12/19 × 5/6

28,1/4 3/4 ÷ 2/3

29,8/7 × 21/16 1/ 2

30.101 × 1/5 – 1/5 × 21

31.50 160÷40 (58 370)÷(64-45)

32.120 -144 ÷18 35

33.347 45×2-4160÷52

34(58 37)÷(64-9×5)

35.95÷( 64- 45)

36.178-145÷5×6 42 420 580-64×21÷28

37.812-700÷(9 31×11) (136 64)×( 65- 345÷23)

38.85 14×(14 208÷26)

39.(284 16)×(512-8208÷18)

40.120- 36×4÷18 35

41.(58 37)÷(64-9×5)

42.(6.8-6.8×0.55)÷8.5

43.0.12× 4.8÷0.12×4.8

44.(3.2×1.5 2.5)÷1.6 (2)3.2×(1.5 2.5)÷1.6

45.6- 1.6÷ 4= 5.38 7.85-5.37=

46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

47.6.5×(4.8-1.2× 4) = 0,68×1,9 0,32×1,9

48,10,15-10,75×0,4-5,7

49.5.8×(3.87-0.13) 4.2×3.74

50.32.52-(6 9.728÷3.2)×2.5

51.[(7.1-5.6)×0.9-1.15 ] ÷2.5

52.5.4÷[2.6×(3.7-2.9) 0.62]

53.12×6÷(12-7.2)-6 (4)12×6÷7.2 -6