A Ddition, Subtraction; M Ultiplicatio N, D Iv Is Io N - Sharp EL-512 Instruction Manual

1. A ddition, Subtraction
Key in: 123 3 D 456 EE] 789 [= ) Answer: 1368
Key in: 100 [ 3 25 [ 3 35 ( = ] Answer: 40
Pressing the [ = ] key gives the answer to the entered formula.
Using a constant:
The calculator is equipped with a built-in constant feature which allows repetitive cal­
culations (calculating w ith the same number w ithout having to re-enter that number and
the function key).
Key in: 10 3 D 20 [= )
20 is now a constant for further additions:
Answer: 30
Key in: 60 [= ]
Answer: 80
10
Some calculations require slightly longer time depending on the contents.
If nothing appears on the display during calculation do not continue making
entries.
To use the sum o f numbers as a constant use ED and EO keys.
Key in: 10 [+ ]
DD
20
[ S
5
(XI
[= ]
Answer: 35
Key in:
4
m
Answer: 29
Key in: 100
ED 25 [=D
Answer: 75
Key in:
40 G=)
Answer: 15
Key in:
50 ED CD
10
ED 2 ( I ]
[ 1 ]
Answer:
42
Key in:
20 [= ]
Answer:
12
2. M ultiplication, Division
Calculate: 50 x (—2)+• 4
Key in: 50 [X ] 2 B 5 ] 4 [= ]
Note: To enter a negative number, press the |
h
£ | key after numerals.
Answer: — 25
Calculate: 5 + 2 x 3 - 2 1 - 0 . 5
Key in: 5 5 J 2 [ x ] 3 ED 2 H .5 [= )
Answer: 7 t— (Press ED )