|
1.
19 – 2 =
2
17
|
2.
31 – 20 =
11
1
|
3.
45 – 28 =
2
17
|
4.
23 – 2 =
21
2
|
|
5.
50 – 17 =
2
33
|
6.
21 + 13 =
2
34
|
7.
84 – 76 =
1
8
|
8.
56 + 39 =
95
2
|
|
9.
63 – 2 =
61
2
|
10.
82 + 17 =
99
2
|
11.
90 + 9 =
99
2
|
12.
60 – 14 =
2
46
|
|
13.
18 – 5 =
13
1
|
14.
12 + 3 =
1
15
|
15.
21 – 9 =
1
12
|
16.
36 + 51 =
87
2
|
|
17.
100 – 82 =
18
2
|
18.
14 + 5 =
2
19
|
19.
90 – 90 =
2
0
|
20.
42 + 9 =
2
51
|
|
1.
19 – 2 =
2
17
|
2.
31 – 20 =
11
1
|
3.
45 – 28 =
2
17
|
4.
23 – 2 =
21
2
|
|
5.
50 – 17 =
2
33
|
6.
21 + 13 =
2
34
|
7.
84 – 76 =
1
8
|
8.
56 + 39 =
95
2
|
|
9.
63 – 2 =
61
2
|
10.
82 + 17 =
99
2
|
11.
90 + 9 =
99
2
|
12.
60 – 14 =
2
46
|
|
13.
18 – 5 =
13
1
|
14.
12 + 3 =
1
15
|
15.
21 – 9 =
1
12
|
16.
36 + 51 =
87
2
|
|
17.
100 – 82 =
18
2
|
18.
14 + 5 =
2
19
|
19.
90 – 90 =
2
0
|
20.
42 + 9 =
2
51
|