Free Grade 3 Working with Estimation in Context Common Errors: Real-life Applications Flashcards
Free Grade 3 flashcards for Working with Estimation in Context Common Errors: Real-life Applications: 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
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation in context common errors: real-life applications
Explain working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation in context common errors: real-life applications
Calculate working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation in context common errors: real-life applications
Compare working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation in context common errors: real-life applications
Justify working with estimation in context common errors: real-life applications 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 Working with Estimation in Context Common Errors: Real-life Applications 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 941 to the nearest 10.[1]
- 2.Round 432 to the nearest 10.[1]
- 3.Round 650 to the nearest 10.[1]
- 4.Round 862 to the nearest 10.[1]
- 5.Round 221 to the nearest 100.[2]
- 6.Round 3,854 to the nearest 100.[2]
- 7.Round 7,695 to the nearest 100.[2]
- 8.Round 8,312 to the nearest 10.[2]
- 9.Round 95,748 to the nearest 1,000.[3]
- 10.Round 52,897 to the nearest 1,000.[3]
- 11.Round 5,646 to the nearest 100.[3]
- 12.Round 20,140 to the nearest 1,000.[3]
Show answers and working
1. 940
Find the two multiples of 10 either side: 940 and 950. Look at the digit to the right of the rounding place: 5 or more rounds up. 941 rounds to 940.
2. 430
Find the two multiples of 10 either side: 430 and 440. Look at the digit to the right of the rounding place: 5 or more rounds up. 432 rounds to 430.
3. 650
Find the two multiples of 10 either side: 650 and 650. Look at the digit to the right of the rounding place: 5 or more rounds up. 650 rounds to 650.
4. 860
Find the two multiples of 10 either side: 860 and 870. Look at the digit to the right of the rounding place: 5 or more rounds up. 862 rounds to 860.
5. 200
Find the two multiples of 100 either side: 200 and 300. Look at the digit to the right of the rounding place: 5 or more rounds up. 221 rounds to 200.
6. 3,900
Find the two multiples of 100 either side: 3800 and 3900. Look at the digit to the right of the rounding place: 5 or more rounds up. 3854 rounds to 3900.
7. 7,700
Find the two multiples of 100 either side: 7600 and 7700. Look at the digit to the right of the rounding place: 5 or more rounds up. 7695 rounds to 7700.
8. 8,310
Find the two multiples of 10 either side: 8310 and 8320. Look at the digit to the right of the rounding place: 5 or more rounds up. 8312 rounds to 8310.
9. 96,000
Find the two multiples of 1000 either side: 95000 and 96000. Look at the digit to the right of the rounding place: 5 or more rounds up. 95748 rounds to 96000.
10. 53,000
Find the two multiples of 1000 either side: 52000 and 53000. Look at the digit to the right of the rounding place: 5 or more rounds up. 52897 rounds to 53000.
11. 5,600
Find the two multiples of 100 either side: 5600 and 5700. Look at the digit to the right of the rounding place: 5 or more rounds up. 5646 rounds to 5600.
12. 20,000
Find the two multiples of 1000 either side: 20000 and 21000. Look at the digit to the right of the rounding place: 5 or more rounds up. 20140 rounds to 20000.
Worked examples
Round 674 to the nearest 10.
- Find the two multiples of 10 either side: 670 and 680.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 674 rounds to 670.
- Answer: 670
Round 4,465 to the nearest 10.
- Find the two multiples of 10 either side: 4460 and 4470.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 4465 rounds to 4470.
- Answer: 4,470
Round 92,306 to the nearest 100.
- Find the two multiples of 100 either side: 92300 and 92400.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 92306 rounds to 92300.
- Answer: 92,300
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
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Related resources
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