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ARITHMETIC(6)		       BSD Games Manual			 ARITHMETIC(6)

     arithmetic	-- quiz	on simple arithmetic

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

     arithmetic	asks you to solve problems in simple arithmetic.  Each ques-
     tion 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	character.

     The options are as	follows:

     -o	+-x/   By default, arithmetic asks questions on	addition of numbers
	       from 0 to 10, and corresponding subtraction.  By	supplying one
	       or more of the characters +-x/, you can ask for problems	in ad-
	       dition, 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	range  If a range is supplied, arithmetic selects the numbers in its
	       problems	in the following way.  For addition and	multiplica-
	       tion, the numbers to be added or	multiplied are between 0 and
	       range, inclusive.  For subtraction and division,	both the re-
	       quired 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	in-
     volved, 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 yourself.

     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.

     bc(1), dc(1)

BSD				 May 31, 1993				   BSD


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