Estimating Differences
Practice estimating differences between numbers using rounding strategies for Grade 6 math.
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Estimating Differences
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Date:
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Read each question carefully and follow the instructions to estimate the differences. Remember to round the numbers before subtracting.
Round each number to the nearest ten, then estimate the difference.
1. 87 - 32 =
2. 54 - 19 =
3. 91 - 48 =
Round each number to the nearest hundred, then estimate the difference.
4. 345 - 123
5. 789 - 402
6. Which of the following is the best estimate for 678 - 213 by rounding to the nearest hundred?
400
500
600
700
Determine if the following statements are True or False.
7. The estimated difference of 456 and 187 (rounded to the nearest ten) is 270.
True
False
8. Sarah had $735 in her savings account. She spent $298 on a new bicycle. Estimate how much money she has left by rounding to the nearest hundred.
9. Use the number line below to help you estimate the difference between 62 and 18. Round to the nearest ten.