Adding 1-digit #'s
9+7
16
15+10
25
3 tens + 6 ones
26+10+7
43
75+6
81
8+6
14
40+25
65
8 tens + 2 ones
82
20+10+6
36
45+9
54
5+9
14
50+12
62
6 tens + 1 ten
70
17+3+20
40
25+50
75
5 ones + 5 ones
10
43+51
94
4 tens + 6 ones
46
1 ten + 2 tens + 3 tens
60
13+46
59
9 ones + 4 ones
13
35+48
83
10 tens + 9 ones
109
20 tens + 40 tens + 40 tens
100
65+100
165