Hard · Set 1
20 problems
Name:
Class:
Date:
1
2 + 4
=
2
8 + 1
=
3
2 + 3
=
4
4 + 4
=
5
4 + 5
=
6
1 + 8
=
7
7 + 2
=
8
6 + 4
=
9
5 + 1
=
10
5 + 4
=
11
5 + 2
=
12
9 + 1
=
13
3 + 6
=
14
6 + 2
=
15
2 + 8
=
16
1 + 3
=
17
5 + 3
=
18
3 + 2
=
19
7 + 3
=
20
5 + 5
=