arithmetical

Everyday

About arithmetic: adding, subtracting, multiplying and dividing numbers. tree →

In the lessons

In maths lessons and puzzles: arithmetical skills, an arithmetical mistake, an arithmetical sequence (numbers going up by the same amount). Phrases: «arithmetical error», «arithmetical progression».

Examples

• I made an arithmetical mistake in the sum. tree →
• 2, 5, 8, 11 is an arithmetical sequence. tree →
• Quick arithmetical skills help in shops. tree →
• The puzzle needs only arithmetical steps. tree →
• Check your arithmetical working. tree →
• An arithmetical slip cost me a mark. tree →

Note

Same as «arithmetic» used as an adjective. In an arithmetical (arithmetic) sequence, the same number is added each time — the common difference.

In Jewish tradition

In maths lessons and puzzles: arithmetical skills, an arithmetical mistake, an arithmetical sequence (numbers going up by the same amount). Phrases: «arithmetical error», «arithmetical progression».

Examples

• 7) Like Pythagoras, who taught that the digits inclusive number ten which are typified in Tetraktys, (Τετρακτὺς) namely: 1 plus 2 plus 3 plus 4 equal 10, and which comprise the whole arithmetical system of nature, etc. (Sefer Yetzirah, Kalisch 1877) tree →
• The Decad, which is the sum of the four former, comprehends all arithmetical and musical proportions. (Mordell, The Origin of Letters and Numerals according to Sefer Yetzirah (1914)) tree →

Note

Same as «arithmetic» used as an adjective. In an arithmetical (arithmetic) sequence, the same number is added each time — the common difference.