15 + 10 =
25
5 - 3 =
2
1
ONE
30 + 3 =
33
27 - 16 =
11
15
FIFTEEN
17 + 1 =
18
13 - 13 =
0
23
TWENTY-THREE
29 + 5 =
34
42 - 13 =
29
41
FORTY-ONE
40 + 7 =
47
33 - 13 =
20
50
FIFTY