Examples, solutions, videos, stories, and songs to teach Grade 3 students how to estimate quotients using compatible numbers and rounding.
The following diagram shows an example of estimating quotient using compatible numbers. Scroll down the page for more examples and solutions.
Estimate Quotients using Compatible Numbers
We can use compatible numbers to estimate quotients.
Compatible numbers are numbers that are easy to compute mentally.
A zebra’s heart beats 138 times in 3 minutes. About how many times does it beat in 1 minute?
Example 1: Estimate 138 ÷ 4
Example 2: Use compatible numbers to find two estimates that the quotient is between 1,327 ÷ 5
Using Rounding to Estimate Quotients
Estimate Quotients
Example:
Circuses have been around for more than 200 years. They sometimes travel by train. Suppose a circus travels 642 miles in 8 hours. About how many miles per hour did the train travel?
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.