No student devices needed. Know more
15 questions
5 - 2 =
4
1
3
2
6 - 5
3
4
2
1
8 - 3 =
7
5
4
6
9 - 7 =
3
2
1
4
10 - 3 =
8
6
9
7
18 - 6 =
12
15
14
13
19 - 5 =
15
12
13
14
27 - 12 =
17
16
15
14
43 - 8 =
36
38
33
35
17 - 6 =
10
13
9
11
19 - 7 =
13
12
15
14
15 - 3 =
10
13
11
12
14 - 4 =
11
9
10
8
12 - 1 =
8
11
9
10
16 - 5 =
12
10
14
11
Explore all questions with a free account