HP HP-67 - Page 42

38 Getting Started
For example, to solve:
9 +8) X (7 +2)
@ X 5)
Press Display
9 8 Intermediate result of
9 + 8).
7 2 Intermediate result of
7 + 2).
8 (9 + 8) multiplied by
7 +2).
4 S8 Intermediate result of
4 x 5).
a8 7.65 The final answer.
Now try these problems. Remember to work through them as you
would with a pencil and paper, but don’t worry about intermediate
answers—they’re handled automatically by the calculator.
(4 +12)
X
18 = 12)
_
(7505
O-7
16.38 X 5
1638 x5
4 X (17 =12) + (10 = 5) = [4.00
V2+3)Xx@E+5
+V6+7)
x@+9)
=
[21.57