Instruction Manual

POCKET REFERENCE GUIDE — 34
Cubic Yards of Cut/Fill
— Grid Cell Method
The four corner elevations of a Grid cell
are 75.4 Feet, 77.5 Feet, 74.6 Feet, and
80.5 Feet. If the proposed elevation is 83
Feet, and the Area of the Grid is 2,000
Square Feet, what is the Volume (in Cubic
Yards) of cut or fill required for this Grid
cell?
KEYSTROKES DISPLAY
1. Clear calculator:
o o 0.
Find average Existing Grid Elevation
2. Enter first through fourth elevation (in
Memory):
7 5 • 4 f µ
M+ 75.4
FEET
7 7 • 5 f µ
M+ 77.5
FEET
7 4 • 6 f µ
M+ 74.6
FEET
8 0 • 5 f µ
M+ 80.5
FEET
3. Find total:
® µ TTL 308. FEET
4. Find average:
µ AVG 77. FEET
M
M
STORED
M
M
M
M