place value

Front

Click the number: 10, 2, 21, 12

Back

12

Front

Click the number: 3, 30, 300, 20

Back

30

Front

Click the number: 23, 33, 43, 13

Back

23

Front

Click the number: 1, 10, 100, 11

Back

10

Front

Click the number

Back

5

Front

Click the number: 34, 30, 3, 4

Back

34

Front

Click the number 24, 40, 20, 42

Back

42

Front

Click the number: 50, 5, 500, 40

Back

50

Front

Click the number: 31, 12, 14, 13

Back

13

Front

Click the number: 4, 8, 80, 800

Back

8