SIMPLE SOLUTIONS

# ARITHMETIC(6) - man page online | games

Quiz on simple arithmetic.

Chapter
May 31, 1993
```ARITHMETIC(6)                            BSD Games Manual                           ARITHMETIC(6)

NAME
arithmetic — quiz on simple arithmetic

SYNOPSIS
arithmetic [-o +-x/] [-r range]

DESCRIPTION
arithmetic asks you to solve problems in simple arithmetic.  Each question must be answered
correctly before going on to the next.  After every 20 problems, it prints the score so far
and the time taken.  You can quit at any time by typing the interrupt or end-of-file charac‐
ter.

The options are as follows:

-o      By default, arithmetic asks questions on addition of numbers from 0 to 10, and cor‐
responding subtraction.  By supplying one or more of the characters +-x/, you can
tively.  If you give one of these characters more than once, that kind of problem
will be asked correspondingly more often.

-r      If a range is supplied, arithmetic selects the numbers in its problems in the fol‐
lowing way.  For addition and multiplication, the numbers to be added or multiplied
are between 0 and range, inclusive.  For subtraction and division, both the required
result and the number to divide by or subtract will be between 0 and range.  (Of
course, arithmetic will not ask you to divide by 0.)  The default

range   is 10.

When you get a problem wrong, arithmetic will remember the numbers involved, and will tend
to select those numbers more often than others, in problems of the same sort.  Eventually it
will forgive and forget.

arithmetic cannot be persuaded to tell you the right answer.  You must work it out for your‐
self.

DIAGNOSTICS
“What?” if you get a question wrong.  “Right!” if you get it right.  “Please type a number.”
if arithmetic doesn't understand what you typed.