the type of mathematics that deals with the adding, multiplying, etc. of numbers 算术 sums involving the adding, multiplying, etc. of numbers 算术运算；四则运算 a quick bit of mental arithmetic (= sums you do in your head, without writing anything down) 快速心算 I think there's something wrong with your arithmetic. 我认为你的计算有错。 I’ve worked out the price, but I need to check the arithmetic. 我已经算出了价钱，但还需要检查一下计算结果。 a test of mental arithmetic 心算测验
Oxford Collocations Dictionaryadjective- basic
- simple
- mental
- …
- do
Word OriginMiddle English: from Old French arismetique, based on Latin arithmetica, from Greek arithmētikē (tekhnē) ‘(art) of counting’, from arithmos ‘number’.