20 + 5 =
25 - twenty-five
9 + 4 =
13 - thirteen
What number is this?
19 - nineteen
40 + 12 =
52 - fifty-two
What number is this?
12 - twelve
48 + 2 =
50 - fifty
40 + 7 =
47 - forty-seven
What number is this?
28 - twenty-eight
36 - 3 =
33 - thirty-three
50 - 20 =
30 - thirty