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Average of three
★★★Average = total ÷ how many.
Decimal Mountain · Learn first
Example
What is the average of these numbers?
2, 6, 10
Answer: 6
Averages · Data & Probability
Find the average of a set, and find a missing value from a known average.
Average = total ÷ how many.
This is step 1 of unit 6, “Averages”, in Stage 6: Factors, common denominators, multiplying fractions and decimals, area (ages 12). A round has 10 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.