Topic 1 Basic operations on numbers Terms

Large numbers: 1 000 – thousand, 1 000 000 – million, 1 000 000 000 – billion,

1 000 000 000 000 – trillion, 1 000 000 000 000 000 – quadrillion, and so on.

Digit – a number between 0 and 9 including. There are 10 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
Order of operations – the order for performing arithmetic operations. The order of operations: brackets, powers, multiplication or division, addition or subtraction. For example:. Remember: 1.4 and 1,023,145 (in American and British systems) are written as 1,4 and 1.023.145 (in Uzbek, Russian and German systems).

Recurring decimals: and (in American and British systems) = 1,(3) and 1,(143) (in Uzbek, Russian and German systems).