2位数加1位数+2位数减1位数 计算题
1.85 + 4 = 89
2.74 - 7 = 67
3.80 + 4 = 84
4.80 - 7 = 73
5.75 - 7 = 68
6.17 + 8 = 25
7.28 - 8 = 20
8.96 - 6 = 90
9.70 + 5 = 75
10.68 - 5 = 63
11.82 + 1 = 83
12.18 - 4 = 14
13.76 - 9 = 67
14.82 - 0 = 82
15.56 - 4 = 52
16.11 - 4 = 7
17.32 - 4 = 28
18.29 - 2 = 27
19.72 + 8 = 80
20.43 + 6 = 49
21.53 - 2 = 51
22.96 + 3 = 99
23.44 + 5 = 49
24.95 + 2 = 97
25.76 + 2 = 78
26.92 + 4 = 96
27.25 - 3 = 22
28.85 + 9 = 94
29.12 - 2 = 10
30.89 - 2 = 87
31.29 - 2 = 27
32.31 - 6 = 25
33.78 - 6 = 72
34.80 + 1 = 81
35.55 + 9 = 64
36.47 + 9 = 56
37.34 + 0 = 34
38.70 - 7 = 63
39.98 - 6 = 92