Worked examples
Two examples
Example 1
Baseboard costs $3 a foot. A room needs 240 inches of it. What will it cost?
- Change inches to feet first: 240 ÷ 12 = 20 feet.
- 20 × 3 = 60.
Answer: $60
Example 2
A pot holds 2 gallons of soup. How many 1-cup servings is that?
- A gallon is 16 cups: 2 × 16 = 32 cups.
Answer: 32 servings
Where this is taught: Quiz 26: Units and Conversions, “A fraction that equals one”
The drill
Ten problems
How many:
Type each answer, then press Check my answers at the bottom. Commas in large numbers are fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.