› the part of mathematics that involves the adding and multiplying, etc. of numbers: I've never been very good at arithmetic. an arithmetic test › calculations involving adding and multiplying, etc. numbers: I did some quick mental arithmetic and decided it was going to cost too much. I can't work out which of these is cheaper - could you do the arithmetic?

arithmetical

adjective uk
/ˌær.ɪθˈmet.ɪ.kəl/ us
/ˌer.ɪθˈmet̬-/ (also arithmetic,
/ˌær.ɪθˈmet.ɪk/
)

› arithmetical problemsarithmetically

adverb uk
/ˌær.ɪθˈmet.ɪ.kəl.i/ us
/ˌer.ɪθˈmet̬-/

(Definition of arithmetic from the Cambridge Advanced Learners Dictionary & Thesaurus
© Cambridge University Press)

What is the pronunciation of arithmetic?
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You are looking at an entry to do with Branches & types of mathematics, but you might be interested in these topics from the **Mathematics & arithmetic** topic area:

- Addition, subtraction, multiplication & division
- Averages
- Calculations & calculating
- Fractions
- Geometrical & mathematical instruments
- Geometrical shapes
- Geometry: bends, loops & curves
- Geometry: describing angles, lines & orientations
- Geometry: parts of geometrical shapes
- Geometry: properties of circles & curves
- Mathematical symbols
- Numbering & counting
- Numbers generally
- Numbers: cardinal, including nought & zero
- Numbers: groups of things according to number
- Numbers: ordinal
- Numbers: single, double & multiple
- Numerical relationships
- Statistics
- Tables, graphs & diagrams
- Terms for numbers

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“arithmetic”: synonyms and related words:

to give permission for someone to do something or for something to happen

October 22, 2014

We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,