MARTINDALE’S CALCULATORS ONLINE CENTER MATHEMATICS CENTER BASIC MATH (Calculators, Applets, Spreadsheets, 
COUNTING SHEEP CALCULATORS & APPLETS BASIC MATH CALCULATORS, APPLETS & SPEADSHEETS (XLS) – ALL INCLUSIVE
Triangles; Ellipses; etc…” 3D Shape Calculators
Cuboids; Pyramids; Barrels; etc…” General Arithmetic Calculators
Basic Unit Conversion Calculators
Feet & Inches; Angles; Pounds & Ounces; Units of Alcohol; Density; Pressure & Stress; Speed; Fuel Consumption; Power; etc…” For more information see
for School Mathematics and the NCEE Performance Standards for Middle School…” Middle School Math Calculators include:
Geometry Calculators & Measurement Calculators; Algebra Calculators; Probability Calculators; Statistics Calculators; etc. For more information see
Bar Grapher; Box Plotter; Bobbie Bear; Circle Grapher; Congruence Theorems; Cube Nets; Cubes; Factorize; Fractal Tool; Fraction Game; Geometric Solids; Histogram Tool; Shape Cutter; Shape Sorter; etc…” For more information see
Multiplication Calculator; Division Calculator; Rounding a number Calculator; Rectangle Calculator; etc…” General Math Calculators with Lessons
Add Fractions Calculator; Subtract Fractions Calculator; Multiply Fractions Calculator; Pronunce Numbers (Audio/Sound); etc…” Algebra Calculators; Geometry Calculators; etc.

Basic Math Calculators & Applets: Some Examples by Subject ACREAGE CALCULATORS – HECTARE CALCULATORS – LAND AREA CALCULATORS – FIELD CALCULATORS FIELD CALCULATOR – ACREAGE CALCULATOR – HECTARE CALCULATOR – R.T. Peters (Washington State University), H. Neibling (University of Idaho) & M. English (Oregon State University), Irrigation in the Pacific Northwest VERY EXTENSIVE. Field Calculator – Acreage Calculator – Hecatare Calculator includes
Triangular Field Area Calculator; Circular Field Area Calculator; Trapezoidal Field Area Calculator…” For more information see BARREL, BOX, CYLINDER, ETC. CALCULATORS & APPLETS
Round Bin Volume Calculator Round Bin Volume Calculator INPUT Values include:
Crop
Oats; Corn; Soybeans…”
EXPONENTIAL EXPRESSION CALCULATORS & APPLETS
expression (as in x raised to the power of y, where y is less than 600). It will handle positive and negative exponents and positive and negative bases…” For more information see FRACTION & DECIMAL <> FRACTION CALCULATORS & APPLETS
TIME CALCULATORS & APPLETS
two songs on a CD. Maybe you work in radio or television and regularly juggle times..” Time Calculator INPUT Values include:
For more information see TANK CALCULATORS
otherwise the results will be larger than the real volume. Depth to liquid is the dipstick measurement from the top of the tank to the surface of the liquid. By entering the above information this calculator gives you the contents of tank in cubic feet, Imperial and U.S. gallons, and litres. It also gives you the percent that the tank is full at the various depths of liquid…” On Side Tank Calculator INPUT Values include
Depth to Liquid Depth
from the top of the tank to the surface of the liquid)…” On Side Tank Calculator OUTPUT Values include
For more information see
Vertical Tank Level Calculator INPUT Values include:
Gauge Chart in 1 or 1/8th Inch Increments Calculator INPUT Values include:
Chart in 1 Inch Increments or Chart in 1/8th Inch Increments…” For more information see
Vertical Cylindrical Tanks; Rectangular Tanks; Volume Converter…” For more information see
Diameter of Tank; Length of Tank; Height of Tank if Rectangular; Increments in Inches (1, .5, .25 or .125); Stiker Panels…” For more information see
U.S. Gallons in Round Tanks Volume Calculator INPUT Values include:
Head Type
80:10 Flanged & Dished; Hemispherical or Elliptical)…” U.S. Gallons in Round Tanks Volume Calculator OUPUT Values include:
Volume of Head (Gallons or Liters); Volume to Top Tangent Line (Gallons or Liters); Flooded Volume (Gallons or Liters)…” For more information see
otherwise the results will be larger than the real volume. Depth to liquid is the dipstick measurement from the top of the tank to the surface of the liquid. By entering the above information this calculator gives you the contents of the tank in cubic feet, Imperial and U.S. gallons, and litres. It also gives you the percent that the tank is full at the various depths of liquid…” Vertical Tank Calculator INPUT Values include:
Vertical Tank Calculator OUTPUT Values include
For more information see 
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