小学生口算心算速算的练习题

发布时间:2021-12-27 21:07:44

  口算心算速算:

  42 -12 -108 = 30 -108 = -78

  43 -3 -92 = 40 -92 = -52

  44 6 -76 = 50 -76 = -26

  45 15 -60 = 60 -60 = 0

  46 24 -44 = 70 -44 = 26

  47 33 -28 = 80 -28 = 52

  48 42 -12 = 90 -12 = 78

  49 51 4 = 100 4 = 104

  50 60 20 = 110 20 = 130

  小学生口算心算速算练习题:

  51 69 36 = 120 36 = 156

  52 78 52 = 130 52 = 182

  53 87 68 = 140 68 = 208

  54 96 84 = 150 84 = 234

  55 -45 -200 = 10 -200 = -190

  56 -36 -184 = 20 -184 = -164

  57 -27 -168 = 30 -168 = -138

  58 -18 -152 = 40 -152 = -112

  59 -9 -136 = 50 -136 = -86

  60 0 -120 = 60 -120 = -60

  61 9 -104 = 70 -104 = -34

  62 18 -88 = 80 -88 = -8

  63 27 -72 = 90 -72 = 18

  64 36 -56 = 100 -56 = 44

  65 45 -40 = 110 -40 = 70

  66 54 -24 = 120 -24 = 96

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