What number is this?
1 ten
3 ones
13
72
7 tens and 2 ones
llllll
60
53
lllll...
lllllll.
71
9 tens
9 ones
99
63
6 tens and 3 ones
lllll........
58
12
l..
ll
20
4 tens
8 ones
48
52
5 tens and 2 ones
ll....
24
llllll....
64
10 tens
2 ones
102
90
9 tens
lllllllll.
91
38
lll........
llllllll
80
9 tens
90
75
7 tens 5 ones
lllllll
70
80
llllllll
lllllll........
78