arithmetic
[noun]
Synonyms: computation, calculation, ciphering, estimation, figuring, reckoning

[TahlilGaran] English Synonym Dictionary ▲

I. a‧rith‧me‧tic¹ /əˈrɪθmətɪk/ noun [uncountable]
[Date: 1200-1300; Language: Old French; Origin: arismetique, from Latin, from Greek, from arithmein 'to count', from arithmos 'number']
the science of numbers involving adding, multiplying etc ⇒ mathematics

[TahlilGaran] Dictionary of Contemporary English ▲

II. ar‧ith‧met‧ic² /ˌærɪθˈmetɪk◂/ (also ar‧ith‧met‧i‧cal /-tɪkəl/) adjective technical
involving or related to arithmetic:
the arithmetic mean (=average)
—arithmetically /-kli/ adverb

[TahlilGaran] Dictionary of Contemporary English ▲

arithmetic
noun
ADJ. basic, simple | mental a test of mental arithmetic
VERB + ARITHMETIC do By the age of ten, the children can do simple arithmetic.
check I've worked out the price, but I need to check the arithmetic.

[TahlilGaran] Collocations Dictionary ▲

arithmetic
noun
BAD: She comes to see me three times a week for help with her arithmetics.
GOOD: She comes to see me three times a week for help with her arithmetic.

Usage Note:
mathematics (WITH -s ) but arithmetic (WITHOUT -s ): 'Arithemtic isn't difficult if it's taught properly.'
See also MATHEMATICS (mathematics)

[TahlilGaran] Dictionary of Common Errors ▲