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8. Problem solving in Auto mode
a. Press the
key to enter Problem Solving.
The
Auto
and
indicators are displayed, indicating that you are
in the Automatic mode of Problem Solving.
A simple equation with one part missing is automatically
displayed. (Problems are random.) The default start is with
addition.
eg,
9 + ? = 12
. Keying in 3 where the cursor is,
then
enter
,
results in
YES
as shown.
Key in an incorrect answer and watch the
=
symbol in the display.
In this case, 6 + 12 = ?
Press
.
The calculator tells you the answer
is wrong and gives you a hint (the
<
or
>
symbol) to let you know how to adjust your
answer to get the right answer.
Now key in the correct answer, in this case 18
.
6 + 12 = 18
and
YES
are displayed.
Then a new problem pops up for you to solve.
The calculator gives three tries before it gives the right
answer and moves to the next
problem. After every 5 problems a scoreboard shows the number of correct and incorrect
answers.
d. Press
The Problem Solving menu is displayed. First, your score is displayed.
YES
and
NO
tell you how many correct answers you have given and
how many incorrect.
e. The first selection
AUTO MAN
is displayed.
AUTO
is underlined because you are in AUTO mode.
f. Press Down
. The selection
1 2 3
is displayed.
This selects the level of difficulty of the problems displayed;
level 1 is the simplest, level 2 intermediate, and level 3 the most difficult.
Press
and
to underline the level you want.
Press
to confirm your selection.
