
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 endoffile 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
ask for problems in addition, subtraction, multiplication, and division, respec
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.
SEE ALSO
bc(1), dc(1)
BSD May 31, 1993 BSD 
