Number English French
1 one un
2 two deux
3 three trois
4 four quatre
5 five cinq
6 six six
7 seven sept
8 eight huit
9 nine neuf
10 ten dix
11 eleven onze
12 twelve douze
13 thirteen treize
14 fourteen quatorze
15 fifteen quinze
16 sixteen seize
17 seventeen dix-sept
18 eighteen dix-huit
19 nineteen dix-neuf
20 twenty vingt
The square numbers between 1 and 20 are 1,4,9 and 16.
101
1000001
All whole numbers between 1 and 400 (=20 square).
The numbers are: 1 and 20
These are the prime numbers 1-20 2,3,5,7,11,13,17,19
The numbers 1-20 are on a dart board so there are twenty numbers.
20 and 1. 20 + 1 = 21 20 - 1 = 19
Well, honey, the sum of counting numbers from 1 to 20 is 210. You add up 1 + 2 + 3... all the way to 20 and you get your answer. So, go ahead and impress your friends with your newfound math knowledge.
2/5 of the numbers from 1 to 20 are prime numbers
The square numbers between 1 and 20 are 1,4,9 and 16.
The counting numbers from 1 to 20 are called natural numbers. There are larger sets that include the numbers from 1 to 20, but have other members as well. For example, the integers contain 1 through 20, but also all numbers 21, 22, 23, ... The set of real numbers includes all numbers on the number line, which includes 0 and negative numbers and irrational numbers like pi, but also includes 1 through 20. Etc.
20 contre 1 / vingt contre un
101
1000001
1/ Female is 'femelle' in French. 2/ The feminine adjective for English is 'anglaise'.
The numbers are: -1 and -20