Advertisement
Getting Started
Example 2 ►>>
owner says that after a 37% discount, you only need to pay RM 228.50. Cross
check whether his mathematics is correct.
Operation
One approach is through the direct use of the formula, New = Old – Old*Discount.
Ensure that the calculator is in COMP mode and key in the following.
COMP
3
2
6
(%)
(
EXE
Another nice approach is by using the percentage difference function.
Ensure that the calculator is in COMP mode and key in the following.
COMP
2
6
2
While his mathematics is not exact, the shop owner is a scrupulous merchant. █
Another feature in modern calculators is the ability to do expression editing.
Example 3 ►>>
Operation
[For FC-200V]
While the calculator is in COMP mode, key in the following.
COMP
7
•
8
EXE
Immediately after the above, tap
EXE
5
to evaluate
3
85
.
.
7
4
.
QED Education Scientific
The original selling price of an item is RM 362.70. The shop
•
6
2
•
7
X
2
8
•
•
SHIFT
7
Evaluate the following: (i)
•
SHIFT
4
―
7
3
3
7
SHIFT
―
5
3
•
( %)
3
8 .
. 3
85
, (ii)
7
4 .
7
4 .
(Λ)
6
3
once. As cursor is at position after 8, tap
Output: 228.501
Output: -37.00027571
. 3
85
and (iii)
7
9 .
Output: 2009.465411
Output: 2220.967078
[Continue next page]
2
Advertisement
