Why do we use binary numbers in computing? Select all answers that apply. Binary arithmetic is more familiar to non-technical people than decimal arithmetic. Binary digits allow for a more reliable electronic representation than other systems, since it is easier to distinguish 0 (off) from 1 (on) than among small gradations of voltage. Binary arithmetic maps neatly to boolean logic, which in turn maps to types of electronic circuit. Binary representations take up less space in memory than decimal representations