Evaluación cálculo mental- Números menores de 100

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63 x 5 = 73 x = 584

4 x 7 = 54 x = 378

47 x 3 = 37 x = 296

57 x 5 = 48 x = 336

28 x 9 = 63 x = 189

68 x 7 = 70 x = 490

15 x 4 = 37 x = 333

90 x 5 = 73 x = 292

26 x 5 = 14 x = 84

78 x 6 = 77 x = 462

69 x 8 = 83 x = 747

66 x 2 = 12 x = 108

9 x 8 = 22 x = 88

20 x 2 = 24 x = 216

24 x 9 = 18 x = 36

68 + 68 = 17 + = 39

25 + 55 = 35 + = 72

49 + 19 = 3 + = 30

61 + 35 = 84 + = 131

55 + 64 = 40 + = 87

30 + 73 = 24 + = 75

85 + 61 = 3 + = 87

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23 + 52 = 33 + = 72

2 + 51 = 3 + = 59

59 + 55 = 21 + = 27

29 + 63 = 16 + = 102

33 + 46 = 89 + = 124

10 + 41 = 70 + = 133

61 + 17 = 87 + = 165

40 + 39 = 80 + = 104

6 - 5 = 13 - = 11

73 - 28 = 31 - = 25

80 - 36 = 83 - = 68

54 - 47 = 56 - = 10

72 - 54 = 60 - = 46

53 - 11 = 10 - = 2

61 - 49 = 6 - = 4

15 - 8 = 69 - = 40

40 - 40 = 16 - = 4

55 - 2 = 54 - = 0

49 - 4 = 5 - = 1

57 - 31 = 12 - = 1

66 - 17 = 44 - = 19

34 - 22 = 58 - = 35

65 - 48 = 67 - = 20

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