Casio MS300M User Manual

How to Run Casio MS-300M

Form 7.20

The Casio MS-300m works just like any calculator, but it calculates time! It is
used to calculate Time Taken for Green Cards. It’s easy - just enter it the way

you would say it!

1. Enter the
END time from

the Green Card as
Press the
H/M/S

key
between
each
time
entry as
if it were
the :
(colon)
key. See
the
Example.

0 – 00’00”

HH (H/M/S)

MM (H/M/S)

SS (H/M/S)

Ex: Enter

12 (H/M/S)

02 (H/M/S)

33 (H/M/S) for

12:02:33 then

Press the MINUS

key

2. Next enter the

START Ex: Enter

11 (H/M/S)

15 (H/M/S)

00 (H/M/S) for

11:15:00

3. Press the EQUAL

key and the Time

Taken will appear

Ex: 0:47:33 (47

minutes and 33

seconds) would

appear for the

example given.

• If Start time is a “12:xx:xx” and the End time is a “1:xx:xx”, you will have to use “military

time” i.e. make the 1 a 13. There will only be 7 or 8 entries that are like that –the ones
that start from around 12:30 on until 1:00. Entries that start at 1:00 or after are OK again!

• Wet calculators don’t work. Keep your calculator DRY!