Table of Contents
What are Numbers?
Numbers are symbols that we use to represent quantities. We use numbers to count things, to measure things, and to calculate things.
Number Names From 1 to 50
1- one
2- two
3- three
4- four
5- five
6- six
7- seven
8- eight
9- nine
10- ten
11- eleven
12- twelve
13- thirteen
14- fourteen
15- fifteen
16- sixteen
17- seventeen
18- eighteen
19- nineteen
20- twenty
21- twenty-one
22- twenty-two
23- twenty-three
24- twenty-four
25- twenty-five
26- twenty-six
27- twenty-seven
28- twenty-eight
29- twenty-nine
30- thirty
31- thirty-one
32- thirty-two
33- thirty-three
34- thirty-four
35- thirty-five
36- thirty-six
37- thirty-seven
38- thirty-eight
39- thirty-nine
40- forty
41- forty-one
42- forty-two
43- forty-three
44- forty-four
45- forty-five
46- forty-six
47- forty-seven
48- forty-eight
49- forty-nine
50- fifty
Why Do We Use Names For Numbers?
We use names for numbers to make it easier to communicate quantity. For example, if I say “I have three apples,” you know that I have three apples, and not two or four. This is because the number three has a name, while two and four do not.
What are Whole Numbers?
Whole numbers are counting numbers that are not fractions or decimals. The counting numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, and so on.
What are Prime Numbers?
A prime number is a number that can only be divided by 1 and itself.
What are Composite Numbers?
A composite number is a number that is not prime. Composite numbers are usually made up of two or more prime numbers. For example, the number 6 is composite because it can be divided by 2 and 3. The number 8 is also composite because it can be divided by 2 and 4.
