# Study the word list: GCSE Maths: Numbers 1

Key words for GCSE Maths

 decrease If you decrease a number, you make it smaller. decimal A decimal is a number that shows tenths and hundredths. calculate If you calculate, it means you are doing a mathematical operation. figures Numbers are also known as figures. negative A negative number is a number that is less than zero. value Value is how much something is worth. recurring Recurring means repeating. remainder A remainder is what's left over after dividing. exchange To exchange is to swap one quantity for another depending on value. quotient A quotient is a result calculated through division. decomposition Decomposition is a way of breaking down numbers in subtraction and a way of writing numbers as a product of their primes. mental If you carry out a sum without a calculator, it's called a mental calculation. factor A factor is a number that divides into another number exactly. multiple Multiples are the values that are a particular number's times table, for example 25 is a multiple of 5. equivalent If two numbers are equivalent, they have the same value. fraction A fraction is a part of a whole number, expressed as a/b. For example, a half is 1/2. order The order is the sequence in which you carry something out.

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decrease
decimal
calculate
figures
negative
value
recurring
remainder
exchange
quotient
decomposition
mental
factor
multiple
equivalent
fraction
order

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