Addition to 20
5 + 6 =
11
10 + 10 =
20
15 + 20 =
35
64
6 tens
4 ones
22 + 14 =
36
7 + 8 =
15
22 + 10 =
32
33 + 30 =
63
21
2 tens
1 one
45 + 22 =
67
6 + 6 =
12
68 + 10 =
78
40 + 40 =
80
47
4 tens
7 ones
58 + 22 =
80
9 + 10 =
19
45 + 10 =
55
58 + 20 =
78
35
3 tens
5 ones
61 + 24 =
85
7 + 3 =
10
87 + 10 =
97
50 + 40 =
90
86
8 tens
6 ones
22 + 55 =
77