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