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