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