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