Free Grade 3 Introducing Estimation Worksheets
Free Grade 3 worksheets for Introducing Estimation: 12 real questions with a full answer key and worked solutions. Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
Free
Foundation
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing estimation
Identify introducing estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing estimation
Explain introducing estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing estimation
Calculate introducing estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing estimation
Compare introducing estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Introducing Estimation works
Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Round 283 to the nearest 10.[1]
- 2.Round 149 to the nearest 10.[1]
- 3.Round 922 to the nearest 10.[1]
- 4.Round 123 to the nearest 10.[1]
- 5.Round 569 to the nearest 10.[2]
- 6.Round 6,824 to the nearest 100.[2]
- 7.Round 6,546 to the nearest 100.[2]
- 8.Round 5,989 to the nearest 10.[2]
- 9.Round 6,679 to the nearest 1,000.[3]
- 10.Round 16,329 to the nearest 100.[3]
- 11.Round 12,819 to the nearest 1,000.[3]
- 12.Round 26,149 to the nearest 1,000.[3]
Show answers and working
1. 280
Find the two multiples of 10 either side: 280 and 290. Look at the digit to the right of the rounding place: 5 or more rounds up. 283 rounds to 280.
2. 150
Find the two multiples of 10 either side: 140 and 150. Look at the digit to the right of the rounding place: 5 or more rounds up. 149 rounds to 150.
3. 920
Find the two multiples of 10 either side: 920 and 930. Look at the digit to the right of the rounding place: 5 or more rounds up. 922 rounds to 920.
4. 120
Find the two multiples of 10 either side: 120 and 130. Look at the digit to the right of the rounding place: 5 or more rounds up. 123 rounds to 120.
5. 570
Find the two multiples of 10 either side: 560 and 570. Look at the digit to the right of the rounding place: 5 or more rounds up. 569 rounds to 570.
6. 6,800
Find the two multiples of 100 either side: 6800 and 6900. Look at the digit to the right of the rounding place: 5 or more rounds up. 6824 rounds to 6800.
7. 6,500
Find the two multiples of 100 either side: 6500 and 6600. Look at the digit to the right of the rounding place: 5 or more rounds up. 6546 rounds to 6500.
8. 5,990
Find the two multiples of 10 either side: 5980 and 5990. Look at the digit to the right of the rounding place: 5 or more rounds up. 5989 rounds to 5990.
9. 7,000
Find the two multiples of 1000 either side: 6000 and 7000. Look at the digit to the right of the rounding place: 5 or more rounds up. 6679 rounds to 7000.
10. 16,300
Find the two multiples of 100 either side: 16300 and 16400. Look at the digit to the right of the rounding place: 5 or more rounds up. 16329 rounds to 16300.
11. 13,000
Find the two multiples of 1000 either side: 12000 and 13000. Look at the digit to the right of the rounding place: 5 or more rounds up. 12819 rounds to 13000.
12. 26,000
Find the two multiples of 1000 either side: 26000 and 27000. Look at the digit to the right of the rounding place: 5 or more rounds up. 26149 rounds to 26000.
Worked examples
Round 233 to the nearest 10.
- Find the two multiples of 10 either side: 230 and 240.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 233 rounds to 230.
- Answer: 230
Round 5,987 to the nearest 100.
- Find the two multiples of 100 either side: 5900 and 6000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 5987 rounds to 6000.
- Answer: 6,000
Round 55,288 to the nearest 100.
- Find the two multiples of 100 either side: 55200 and 55300.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 55288 rounds to 55300.
- Answer: 55,300
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Looks at the wrong digit to decide whether to round up.
Correction: Underline the rounding place, then circle the digit to its right.
Changes the digits after the rounding place to anything other than 0.
Correction: Every digit after the rounding place becomes 0.
Teacher tips
- · Use a number line showing the two multiples either side.
Parent tips
- · Estimate the shopping bill to the nearest dollar.
Real-life applications
- · Estimating the total of a shopping trip before paying.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Introducing Estimation
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Frequently asked
- Is this Grade 3 Introducing Estimation worksheet really free?
- Yes. Every worksheets on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Rounding. Each one has its own free lesson, worksheet and quiz.
- How is the worksheet sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Introducing Estimation?
- Move on to Working with Estimation, Estimation in Context, Reading Whole Numbers, Place Value, which build directly on this idea.
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