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Cardinal Numbers (Two-digit numbers) 2 (10-30)
Numbers and Figures
Exercise by Dr Michael A.Riccioli (October 2025)
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
10
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
11
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
12
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
13
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
14
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
15
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
16
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
17
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
18
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
19
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
20
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
21
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
22
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
23
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
24
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
25
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
26
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
27
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
28
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
29
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
30
eighteen
eleven
fifteen
fourteen
nineteen
seventeen
sixteen
ten
thirteen
thirty
twelve
twenty
twenty-eight
twenty-five
twenty-four
twenty-nine
twenty-one
twenty-seven
twenty-six
twenty-three
twenty-two
Check
OK
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