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