# Estimating Quotient

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Examples, solutions, videos, stories, and songs to teach Grade 3 students how to estimate quotients using compatible numbers and rounding.

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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

1. 2,357 ÷ 37
2. 1,567 ÷ 352

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?

÷

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