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