15
g. Press Down
again. The selection
is
displayed.
This selects the type of problems displayed; addition, subtraction,
multiplication, or division, or a
?
in place of the operation symbol
so you have to choose the operation.
Press
and
to underline the operation you want.
Press
to confirm your selection.
h. Press
to exit the menu and return to Problem Solving.
Problems of the level and type chosen will appear.