20以内加法（进位）+2位数加1位数+2位数减1位数 口算题打印
1.72 - 7 = 65
2.44 - 9 = 35
3.58 - 9 = 49
4.35 - 9 = 26
5.71 - 8 = 63
6.20 - 9 = 11
7.66 + 0 = 66
8.15 + 5 = 20
9.17 + 7 = 24
10.19 + 9 = 28
11.93 + 9 = 102
12.79 - 4 = 75
13.72 + 6 = 78
14.17 + 7 = 24
15.52 - 9 = 43
16.27 + 5 = 32
17.27 - 1 = 26
18.46 - 6 = 40
19.92 - 3 = 89
20.14 - 1 = 13
21.16 + 8 = 24
22.19 - 0 = 19
23.11 + 10 = 21
24.77 - 5 = 72
25.34 - 9 = 25
26.36 - 4 = 32
27.70 - 9 = 61
28.18 + 6 = 24
29.14 + 2 = 16
30.67 - 6 = 61
31.18 + 7 = 25
32.10 + 4 = 14
33.16 + 1 = 17
34.50 - 5 = 45
35.93 - 5 = 88
36.47 + 9 = 56
37.93 + 3 = 96
38.70 - 0 = 70
39.79 - 4 = 75