FCAT Practice: Grade Four: Measurement/page 1 of 2

NAME:___________________________________________

Average Yearly Rainfall in Selected Rainforests

Standard 1: Benchmark B: Solves real world problems involving measurement.
Standard 2: Benchmark A: Uses direct and indirect measures to calculate and compare measurable characteristics.
A-2: PCR: Uses customary & metric units to compare length, weight, and capacity or volume.
A-3: Uses multiplication & division to convert units of measure within customary or metric systems. (example 100 cm. = 1 m.)


Mrs. Wartenheimer informed her class that today they would learn to convert inches to millimeters.

"But Mrs. Wartenheimer, we don't like millimeters, " complained little Cindy, "Inches work just fine for us. They're on all the rulers!"

"Most scientific measurements are taken using the metric system," said Mrs. Wartenheimer with a fanatic gleam in her eye, "You kids have had it TOO EASY! It’s time to roll up your sleeves and get busy. I want you to think, eat, drink, and dream metric. NOW GET busy and convert those inches to millimeters!!!"


Average Yearly Rainfall in Selected Rainforests

Selected rainforest in:
Rainfall in inches
Rainfall in mm.
Zaire
76
(76 X 25) = 1,900
India
95

Malaysia
142

Papua, New Guinea
120

Indonesia
163

Columbia
123

Brazil
110


1. In many countries of the world rainfall is measured in millimeters instead of inches. To find out how many millimeters of rain fell in each country’s rainforest, multiply the number of inches of rain by 25. The reason that you must multiply by 25 is because each inch of rain is the same amount as 25 millimeters of rain. (You may use a calculator) Write the number of millimeters which fell in each country’s rainforest in the correct column of the chart.


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