Worked Example 1
Price per Pound
3 pounds of apples cost $4.50. What is the price per pound?
- 1Divide the cost by the pounds: 4.50 ÷ 3 = 1.5
Answer: $1.50 per pound
Florida Grade 6 Math · Algebraic Reasoning
MA.6.AR.3.2: Rates and Unit Rates
What this Grade 6 benchmark means, worked examples, common mistakes, and a free printable worksheet.
Created by a Florida mom · Published by Tropical Learning LLC
What Is Benchmark MA.6.AR.3.2?
A rate is a ratio of two quantities with different units, like 150 miles in 3 hours. A unit rate tells the amount for 1 unit, like 50 miles per hour.
To find a unit rate, divide the first quantity by the second. For example, 500 words in 3 minutes is 5003 = 16623 words per minute. Problems do not convert between customary and metric units.
Official benchmarkGiven a real-world context, determine a rate for a ratio of quantities with different units. Calculate and interpret the corresponding unit rate.
On the FAST test: part of the Grade 6 reporting category Algebraic Reasoning, which is about 25–36% of the test.
Worked Examples
Worked Example 2
Speed
A car travels 150 miles in 2.5 hours. What is its unit rate?
- 1Divide miles by hours: 150 ÷ 2.5 = 60
Answer: 60 miles per hour
Common Mistakes to Watch For
Dividing in the wrong order
Wrong:$4.50 for 3 pounds: 3 ÷ 4.50
For dollars per pound, divide dollars by pounds: 4.50 ÷ 3 = $1.50 per pound.
Leaving out the units
Wrong:The unit rate is 60.
Say what it measures: 60 miles per hour.
Helpful Math Tip
Compare prices at the store using unit prices, like cents per ounce, to decide which size is the better buy.
Related Grade 6 Skills
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Start Practicing FreeIndependent Educational Platform. FastChomp is published by Tropical Learning LLC and is not affiliated with, sponsored by, or endorsed by the Florida Department of Education. FAST and Star assessment names are referenced for informational purposes only. FastChomp practice questions are original educational materials, not official Florida FAST assessment questions.