How can we help?

You can also find more resources in our Help Center.

20 terms

Number Bonds to 20

STUDY
PLAY
1
19
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
10
10
11
9
12
8
13
7
14
6
15
5
16
4
17
3
18
2
19
1
20
0