Free Grade 3 Rules and Methods in Estimation in Context Essentials Lessons
Free Grade 3 lessons for Rules and Methods in Estimation in Context Essentials: 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.
- RememberIdentify rules and methods in estimation in context essentials
Identify rules and methods in estimation in context essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain rules and methods in estimation in context essentials
Explain rules and methods in estimation in context essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in estimation in context essentials
Calculate rules and methods in estimation in context essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in estimation in context essentials
Compare rules and methods in estimation in context essentials 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 Rules and Methods in Estimation in Context Essentials 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 654 to the nearest 10.[1]
- 2.Round 110 to the nearest 10.[1]
- 3.Round 186 to the nearest 10.[1]
- 4.Round 311 to the nearest 10.[1]
- 5.Round 2,569 to the nearest 10.[2]
- 6.Round 5,161 to the nearest 100.[2]
- 7.Round 1,389 to the nearest 100.[2]
- 8.Round 1,131 to the nearest 10.[2]
- 9.Round 96,903 to the nearest 100.[3]
- 10.Round 6,459 to the nearest 100.[3]
- 11.Round 22,793 to the nearest 1,000.[3]
- 12.Round 96,807 to the nearest 1,000.[3]
Show answers and working
1. 650
Find the two multiples of 10 either side: 650 and 660. Look at the digit to the right of the rounding place: 5 or more rounds up. 654 rounds to 650.
2. 110
Find the two multiples of 10 either side: 110 and 110. Look at the digit to the right of the rounding place: 5 or more rounds up. 110 rounds to 110.
3. 190
Find the two multiples of 10 either side: 180 and 190. Look at the digit to the right of the rounding place: 5 or more rounds up. 186 rounds to 190.
4. 310
Find the two multiples of 10 either side: 310 and 320. Look at the digit to the right of the rounding place: 5 or more rounds up. 311 rounds to 310.
5. 2,570
Find the two multiples of 10 either side: 2560 and 2570. Look at the digit to the right of the rounding place: 5 or more rounds up. 2569 rounds to 2570.
6. 5,200
Find the two multiples of 100 either side: 5100 and 5200. Look at the digit to the right of the rounding place: 5 or more rounds up. 5161 rounds to 5200.
7. 1,400
Find the two multiples of 100 either side: 1300 and 1400. Look at the digit to the right of the rounding place: 5 or more rounds up. 1389 rounds to 1400.
8. 1,130
Find the two multiples of 10 either side: 1130 and 1140. Look at the digit to the right of the rounding place: 5 or more rounds up. 1131 rounds to 1130.
9. 96,900
Find the two multiples of 100 either side: 96900 and 97000. Look at the digit to the right of the rounding place: 5 or more rounds up. 96903 rounds to 96900.
10. 6,500
Find the two multiples of 100 either side: 6400 and 6500. Look at the digit to the right of the rounding place: 5 or more rounds up. 6459 rounds to 6500.
11. 23,000
Find the two multiples of 1000 either side: 22000 and 23000. Look at the digit to the right of the rounding place: 5 or more rounds up. 22793 rounds to 23000.
12. 97,000
Find the two multiples of 1000 either side: 96000 and 97000. Look at the digit to the right of the rounding place: 5 or more rounds up. 96807 rounds to 97000.
Worked examples
Round 816 to the nearest 10.
- Find the two multiples of 10 either side: 810 and 820.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 816 rounds to 820.
- Answer: 820
Round 5,540 to the nearest 10.
- Find the two multiples of 10 either side: 5540 and 5540.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 5540 rounds to 5540.
- Answer: 5,540
Round 55,482 to the nearest 1,000.
- Find the two multiples of 1000 either side: 55000 and 56000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 55482 rounds to 55000.
- Answer: 55,000
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.
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- What should a learner already know before this?
- Start with Key Vocabulary of Estimation in Context Essentials, Introduction to Estimation in Context Essentials, Working with Estimation. Each one has its own free lesson, worksheet and quiz.
- How is the lesson 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 Rules and Methods in Estimation in Context Essentials?
- Move on to Working with Estimation in Context Essentials, Estimation in Context Essentials in Examinations, Estimation in Context Techniques, Estimation in Context Word Problems, which build directly on this idea.
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