How many tens are in this number?
1
4
3
2
What number is this?
30
How many tens are in this number?
18
8
80
17
What number is this?
20
How many tens are in this number?
40
10
4
14
How many one's are in this number?
12
11
3
How many ones are in this number?
12
1
2
How many one's are in this number?
01
100
001
10
What number is this?
60
How many tens are in this number?
10
100
11
01
What number is this?
50
What number is this?
90
What number is this?
100
How many tens are in this number?
19
90
91
9
What number is this?
70
What number is this?
80
How many tens are in this number?
10
15
5
How many tens are in this number?
6
7
70
17
How many tens are in this number?
13
30
3
How many tens are in this number?
5
60
6
How many tens are in this number?
1
20
2
What number is this?
10
What number is this?
40
How many one's are in this number?
50
5
05
15