one = один (pronounced adin)
two = два (dva)
three = три (tri)
four = четыре (chetyri)
five = пять (pyat')
six = шесть (shest')
seven = семь (sem')
eight = восемь (vosem')
nine = девять (devyat')
ten = десять (desyat')
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
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.
1 will be "один" or "раз" (for counting). 100 will be "сто" or "сотня".
The numbers are: -1 and -20
41
All whole numbers between 1 and 400 (=20 square).
The numbers are: 1 and 20
6 numbers can go into 20; they are 1, 2, 4, 5, 10 and 20.