1000 problemas de aritmética oral para alumnos de cuarto de primaria

2,54-45 65

3,24-21 54

4,98-95 54

5,54 88-87

6.54 52-84

7.20 84-87

8.21 77-45

9.54 82-12

10.62 59-45

11.51-54 51

12.87-78 99

13.24 54-51

14.54 84-21

15,87-51 55

16,87-72 91

17,85-58 46

18,62 12-85

19,25 58 -54

20.61-54 81

21.52-21 15

22.54-21 78

23.81 62-58

24,56 84 84

25,49 89-11

26,96-27 15

27,95-25 48

28,94-84 86

29.65-45 25

30.54-96 85

31.88 21-37

32.69 97-27

33.14 48-58

34.25 95-46

35.36 62-57

36.53 31-39

37.43 94-48

38.76 25-28

39.89 60-16

40.94 84-38

41.65 50-19

42,52 35-27

43,11 15-28

44,24 64-26

45,47 31-25

46,58 97-34

47.84 46-25

48.95 95-20

49.61 75-13

50.12 65-12

51.73 45-32

52.86 25-21

53.99 85-12

54.38 16-54

55.15 34-54

56,24 94-28

57,81 76-58

58,42 31-49

59,53 98-26

60,26 84 -35

61,39 45-19

62,68 11-28

63,85 94-24

64,44 34-28

65,31 32-38

66,82 65-37

67,13 54-39

68,26 97-24

69,99 55- 25

70.37 82-20

71.15 46-32

72.98 72-21

73.56 92-65

74.75 81-54

75.81 69-12

76.48 87-32

77.54 54-62

78.38

32-12

79.66 21-52

80.15 54-13 81.21 98-52 83.42 87-42

83.95 54-14

85.84 21-65

86.58 65-35

87.69 21-25

88.36 54-12

89.11 24-65

90.42 98-32

91.74 65-45

92.85 32-25

93.58 85-16

94,27 54-25

95,65 21-34

96,91 65-21

97,53 95-54

98,78 87-32

99.54 24-87

100.82 54-12