




| Notes: | "a hundred" is less formal than "one hundred" | |||
| In spoken English "zero", "nought" or "oh" are used for the number 0. "zero" is most common in US and technical English. | ||||
| In English a comma or a space is used to separate thousands, eg 10,000 or 10 000. A decimal point is used for decimals, eg pi=3·142857 | ||||
| US and GB1 | Europe and GB2 | |||
| 1 000 000 000 | 109 | a/one billion | a/one thousand million | |
| 1 000 000 000 000 | 1012 | a/one trillion | a/one billion | |
| 1 000 000 000 000 000 | 1015 | a/one quadrillion | a/one thousand billion | |
| 1 000 000 000 000 000 000 | 1018 | a/one quintillion | a/one trillion | |
| 1 GB finance, business and newspaper forms | ||||
| 2 GB traditional forms | ||||
| 1/8 | a/one eighth | 1/4 | a/one quarter |
| 1/3 | a/one third | 1/2 | a/one half |
| 3/4 | three quarters | 2/3 | two thirds |
| 7/8 | seven eighths | 2/5 | two fifths |
| Complex fractions are spoken as follows: | |||
| 22/7 | twenty-two over seven | 9/126 | nine over a hundrend and twenty-six |
| + | plus/add | 2+2 | two plus two |
| - | minus/take away | 10-3 | ten minus three |
| x | multiplied by/times/by | 3x5 | three times five or three fives |
| ÷ | divided by | 2÷3 | two divided by three |
| = | equals/is equal to is/are |
2+2=4 | two plus two equals four two plus two is four |
| > | is more than | a>b | a is more than b |
| < | is less than | b<a | b is less than a |
| % | percent | 80% | eighty percent |
| √ | (square)root | √10 | the square root of ten |
| x2 | squared | 52 | five squared |
| x3 | cubed | 73 | seven cubed |
| xx | to the power | 1120 | eleven to the power twenty |
| 60 seconds (") = 1 minute (´) | 90 degrees = 1 right angle |
| 60 minutes = 1 degree (°) | 360 degrees = 1 circle or circumference |