|
1.
15 – 10 =
5
1
|
2.
34 – 24 =
1
10
|
3.
13 – 5 =
1
8
|
4.
6 – 2 =
4
1
|
|
5.
7 – 5 =
1
2
|
6.
51 + 22 =
2
73
|
7.
83 + 11 =
2
94
|
8.
7 + 1 =
1
8
|
|
9.
25 + 30 =
2
55
|
10.
74 – 14 =
60
2
|
11.
42 – 6 =
2
36
|
12.
3 – 3 =
0
2
|
|
13.
25 – 9 =
2
16
|
14.
1 + 99 =
2
100
|
15.
38 + 31 =
69
2
|
16.
42 + 45 =
87
2
|
|
17.
43 – 18 =
2
25
|
18.
9 + 56 =
65
2
|
19.
58 – 50 =
8
1
|
20.
40 – 33 =
1
7
|
|
1.
15 – 10 =
5
1
|
2.
34 – 24 =
1
10
|
3.
13 – 5 =
1
8
|
4.
6 – 2 =
4
1
|
|
5.
7 – 5 =
1
2
|
6.
51 + 22 =
2
73
|
7.
83 + 11 =
2
94
|
8.
7 + 1 =
1
8
|
|
9.
25 + 30 =
2
55
|
10.
74 – 14 =
60
2
|
11.
42 – 6 =
2
36
|
12.
3 – 3 =
0
2
|
|
13.
25 – 9 =
2
16
|
14.
1 + 99 =
2
100
|
15.
38 + 31 =
69
2
|
16.
42 + 45 =
87
2
|
|
17.
43 – 18 =
2
25
|
18.
9 + 56 =
65
2
|
19.
58 – 50 =
8
1
|
20.
40 – 33 =
1
7
|