Free Grade 3 Estimation Flashcards
Free Grade 3 flashcards for 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
Higher
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain estimation
Explain estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate estimation
Calculate estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare estimation
Compare estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify estimation
Justify 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 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 791 to the nearest 10.[1]
- 2.Round 131 to the nearest 10.[1]
- 3.Round 763 to the nearest 10.[1]
- 4.Round 124 to the nearest 10.[1]
- 5.Round 3,328 to the nearest 100.[2]
- 6.Round 2,825 to the nearest 100.[2]
- 7.Round 8,644 to the nearest 10.[2]
- 8.Round 7,097 to the nearest 10.[2]
- 9.Round 6,095 to the nearest 100.[3]
- 10.Round 34,045 to the nearest 1,000.[3]
- 11.Round 87,592 to the nearest 100.[3]
- 12.Round 80,322 to the nearest 1,000.[3]
Show answers and working
1. 790
Find the two multiples of 10 either side: 790 and 800. Look at the digit to the right of the rounding place: 5 or more rounds up. 791 rounds to 790.
2. 130
Find the two multiples of 10 either side: 130 and 140. Look at the digit to the right of the rounding place: 5 or more rounds up. 131 rounds to 130.
3. 760
Find the two multiples of 10 either side: 760 and 770. Look at the digit to the right of the rounding place: 5 or more rounds up. 763 rounds to 760.
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. 124 rounds to 120.
5. 3,300
Find the two multiples of 100 either side: 3300 and 3400. Look at the digit to the right of the rounding place: 5 or more rounds up. 3328 rounds to 3300.
6. 2,800
Find the two multiples of 100 either side: 2800 and 2900. Look at the digit to the right of the rounding place: 5 or more rounds up. 2825 rounds to 2800.
7. 8,640
Find the two multiples of 10 either side: 8640 and 8650. Look at the digit to the right of the rounding place: 5 or more rounds up. 8644 rounds to 8640.
8. 7,100
Find the two multiples of 10 either side: 7090 and 7100. Look at the digit to the right of the rounding place: 5 or more rounds up. 7097 rounds to 7100.
9. 6,100
Find the two multiples of 100 either side: 6000 and 6100. Look at the digit to the right of the rounding place: 5 or more rounds up. 6095 rounds to 6100.
10. 34,000
Find the two multiples of 1000 either side: 34000 and 35000. Look at the digit to the right of the rounding place: 5 or more rounds up. 34045 rounds to 34000.
11. 87,600
Find the two multiples of 100 either side: 87500 and 87600. Look at the digit to the right of the rounding place: 5 or more rounds up. 87592 rounds to 87600.
12. 80,000
Find the two multiples of 1000 either side: 80000 and 81000. Look at the digit to the right of the rounding place: 5 or more rounds up. 80322 rounds to 80000.
Worked examples
Round 445 to the nearest 10.
- Find the two multiples of 10 either side: 440 and 450.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 445 rounds to 450.
- Answer: 450
Round 9,153 to the nearest 10.
- Find the two multiples of 10 either side: 9150 and 9160.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 9153 rounds to 9150.
- Answer: 9,150
Round 11,494 to the nearest 100.
- Find the two multiples of 100 either side: 11400 and 11500.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 11494 rounds to 11500.
- Answer: 11,500
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 Estimation
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Frequently asked
- Is this Grade 3 Estimation flashcards really free?
- Yes. Every flashcards 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, Word Form. Each one has its own free lesson, worksheet and quiz.
- How is the flashcards 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 Estimation?
- Move on to Mental Math, Whole Numbers in Real Life, Counting, Number Recognition, which build directly on this idea.
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