User Guide

Po c k e t Re f e R e n c e Gu i d e — 13
KEYSTROKE DISPLAY
c 13.89 s q y d
c 10.42 f e e t (12 ft r o l l )
c 9.62
f e e t (13 ft r o l l )
c 8.33
f e e t (15 ft r o l l )
Concrete: Bags
Find the number of bags of concrete for a
patio measuring 9′ x 15′ x 4″.
KEYSTROKE DISPLAY
o 0.
9 f x 1 5 f
x 4 i = 45.
c u f e e t
C 67.50 b a g
Finding the Cost
of Materials
Cost of Concrete
How much does 216 Cubic Feet of con-
crete cost, if the Cost Per Cubic Yard is
quoted at $50?
KEYSTROKE DISPLAY
o 0.
2 1 6 f f f 216.
c u f e e t
Ç y 8. c u y d
x 5 0 Ç • (Cost) 400.
00
(Cost = approx. $400)
Auto Shut-Off and Battery
Reset
If your calculator should ever “lock up,”
press Reset — a small hole located above
the C key/upper right. Use the end of a
paper clip to press the button.
Auto Shut-Off
After 8 to 12 minutes of non-use.
Battery
Battery Included: One CR-1620 battery.
Battery Life: 575 hours of actual use.
To replace the battery, use a small Phillip’s
head screwdriver and unscrew the single
screw in the center of the battery door,
located on the back of the calculator.
Carefully remove the battery
door, remove the old battery
from the clips, and replace
it with one new CR-1620
battery. Make sure the
positive side (+) is facing
up. Replace the battery door
and reattach the screw.
(cont'd)
PRG8510E-B.indd 13 1/4/2011 1:42:31 PM