|
1.
4 – 4 =
0
2
|
2.
12 – 4 =
1
8
|
3.
10 – 8 =
1
2
|
4.
3 + 14 =
17
2
|
|
5.
9 – 5 =
4
1
|
6.
2 – 1 =
1
2
|
7.
13 – 4 =
9
1
|
8.
20 + 0 =
20
2
|
|
9.
13 – 8 =
1
5
|
10.
10 + 10 =
2
20
|
11.
1 – 1 =
0
2
|
12.
16 – 7 =
9
1
|
|
13.
14 + 5 =
2
19
|
14.
8 + 11 =
2
19
|
15.
16 + 4 =
20
2
|
16.
20 – 5 =
1
15
|
|
17.
14 – 6 =
8
1
|
18.
9 + 2 =
11
1
|
19.
13 + 4 =
17
2
|
20.
8 – 1 =
1
7
|
|
1.
4 – 4 =
0
2
|
2.
12 – 4 =
1
8
|
3.
10 – 8 =
1
2
|
4.
3 + 14 =
17
2
|
|
5.
9 – 5 =
4
1
|
6.
2 – 1 =
1
2
|
7.
13 – 4 =
9
1
|
8.
20 + 0 =
20
2
|
|
9.
13 – 8 =
1
5
|
10.
10 + 10 =
2
20
|
11.
1 – 1 =
0
2
|
12.
16 – 7 =
9
1
|
|
13.
14 + 5 =
2
19
|
14.
8 + 11 =
2
19
|
15.
16 + 4 =
20
2
|
16.
20 – 5 =
1
15
|
|
17.
14 – 6 =
8
1
|
18.
9 + 2 =
11
1
|
19.
13 + 4 =
17
2
|
20.
8 – 1 =
1
7
|