Simple Arithmetic; Addition; Subtraction; Multiplication - AMSTRAD cpc 6128 User Instruction

Simple Arithmetic
Your computer can be used as a calculator quite easily.
To understand this, carry out the following examples. We will use the? symbol
instead of typing pr; n
t
in this section. The answer will be printed as soon as the
[RETURN] key is pressed.
Addition
(use [SHIFT] and ; keys for plus)
Type:
?
3 + 3
[RETURN]
6
(Note that you do NOT type in the equals sign
=)
Type:
? 8
+
4 [RETURN]
12
Subtraction
(useunshifted
=
key for minus)
Type:
Type:
? 4 - 3 [RETURN]
1
? 8 - 4 [RETURN]
4
Multiplication
(Use [SHIFT] and: keys for multiply
(*
means x)
Type:
Type:
?
3
*
3 [RETURN]
9
? 8
*
4 [RETURN]
32
Foundation Course
Chapter 1 Page 33