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Expressions used in calculation and mathematics



used in calculations for showing that numbers are added together



a word used in mathematics and logic meaning ‘if and only if’


adverb, determiner, preposition, pronoun

used in front of a number or amount to state that it should be taken away from another number or amount that you have just mentioned



used in mathematics for saying that you are imagining that something is true, usually in order to prove a principle of mathematics


adjective, preposition

used in mathematics for showing that you are taking one number from another. This word is usually represented by the symbol -



used in mathematics about graphs, waves etc


adjective, conjunction, preposition

used for showing that one number or amount is added to another. This word is usually represented in mathematics by +



used in mathematics for saying how many times you multiply a number by itself. For example ‘10 to the power of 3’ means 10x10x10.

divide/multiply by

used for saying how a number is calculated

hostile architecture

the design of buildings or public spaces in a way which discourages people from touching, climbing or sitting on them …

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Open Dictionary

boots on the ground

a situation in which a country's armed forces are physically present in an area of conflict …

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