Nabu's Knee-knocker
Calculator relations are defined for a calculator with a constant
feature for  and
 . To check your
calculator, put on a number (say 21) and press
 
and so on. If the number on the display increases by 5 each
time you press
(that is, the sequence of numbers you see on the display is 26,
31, 36, 41, 46, and so on), then the calculator has a constant mode
operation of .
 In this
picture, arrows are for the calculator relation
 . Here,
we start with 21 on the display and press
and so
on. Any number you see on the display is a possible ending number
for an arrow. For example, ending numbers could be 36 or 101, as
well as those shown in the picture.
Find all the possibilities for Kid, Mid, and Lid in these pictures
involving various calculator relations. Use a pattern to describe
all possibilities.
You may want to print this page and do your
work in the blank space below.
Scroll down the page to find a hint and the
solution to this problem.
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