Singapore Math Measurement 1 Worksheet - John Foster And Cheryl Rumbaugh Page 4
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11Unit conversion
There are several ways to teach unit conversions
The ratio or proportion method
a/b = c/d
a x d = b x c
The rules:
To change from a larger unit to a smaller unit multiply by the conversion factor.
2 feet = _________ inches
Conversion factor
1 foot = 12 inches
2 feet x 12 = 24 inches
To change from a smaller unit to a larger unit divide by the conversion factor.
12 quarts = ________ gallons
Conversion factor
4 quarts = 1 gallon
12 quarts / 4 = 3 gallons
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