Maths practise!
1
4 + 7
=
2
9 + 2
=
3
3 + 9
=
4
8 + 4
=
5
1 + 3
=
6
5 + 4
=
7
0 + 8
=
8
7 + 8
=
9
7 + 4
=
10
6 + 0
=
11
2 + 2
=
12
8 + 3
=
13
6 + 2
=
14
9 + 7
=
15
1 + 4
=
16
7 + 4
=