Integers

Front 1

-1

Back 1

negative one

Front 2

-2

Back 2

negative two

Front 3

1

Back 3

one

Front 4

2

Back 4

two

Front 5

0

Back 5

zero

Front 6

3

Back 6

three

Front 7

-3

Back 7

negative three

Front 8

4

Back 8

four

Front 9

-4

Back 9

negative four

Front 10

5

Back 10

five

Front 11

-5

Back 11

negative five

Front 12

6

Back 12

six

Front 13

-6

Back 13

negative six

Front 14

7

Back 14

seven

Front 15

-7

Back 15

negative seven