Counting Numbers

Counting numbers are the set of numbers that we use to learn how to count.

Example

1, 2, 3, 4, 5, and so on.

They are also called natural numbers, since they feel natural to us because they are naturally the first numbers to learn.

Sometimes they are also referred to as positive integers.

Counting: Number Names to 100

12345678910
onetwothreefourfivesixseveneightnineten
11121314151617181920
eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwenty
21222324252627282930
twenty-onetwenty-twotwenty-threetwenty-fourtwenty-fivetwenty-sixtwenty-seventwenty-eighttwenty-ninethirty
31323334353637383940
thirty-onethirty-twothirty-threethirty-fourthirty-fivethirty-sixthirty-seventhirty-eightthirty-nineforty
41424344454647484950
forty-oneforty-twoforty-threeforty-fourforty-fiveforty-sixforty-sevenforty-eightforty-ninefifty
51525354555657585960
fifty-onefifty-twofifty-threefifty-fourfifty-fivefifty-sixfifty-sevenfifty-eightfifty-ninesixty
61626364656667686970
sixty-onesixty-twosixty-threesixty-foursixty-fivesixty-sixsixty-sevensixty-eightsixty-nineseventy
71727374757677787980
seventy-seventy-twoseventy-threeseventy-fourseventy-fiveseventy-sixseventy-sevenseventy-eightseventy-nineeighty
81828384858687888990
eighty-oneeighty-twoeighty-threeeighty-foureighty-fiveeighty-sixeighty-seveneighty-eighteighty-nineninety
919293949596979899100
ninety-onninety-twoninety-threeninety-fourninety-fiveninety-sixninety-sevenninety-eightninety-nineone hundred

Note

forty does not have a u but four does!

Learn More

Basic Math Definitions

Difference

Multiplicative Inverse

Additive Inverse

Definitions Index