Year 5

Year 5

# Solving problems involving rounding

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## Lesson details

### Key learning points

1. In this lesson, we will use knowledge of rounding to the nearest 1000, 10 000 and 100 000 to solve problems involving rounding.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
What are the nearest multiples of 1000 for the number 671 349?
600 000 and 700 000
670 000 and 680 000
Correct answer: 671 000 and 672 000
671 300 and 671 400
Q2.
What is 532 098 rounded to the nearest multiple of 100 000?
50 000
Correct answer: 500 000
60 000
600 000
Q3.
What is 763 812 rounded to the nearest multiple of 10 000?
700 000
Correct answer: 760 000
763 000
764 000
Q4.
What is 341 762 rounded to the nearest multiple of 1000?
340 000
341 000
Correct answer: 342 000
350 000
Q5.
Numbers that are exactly half way between two multiples should be...
... left as they are.
... rounded down to the smaller multiple.
Correct answer: ... rounded up to the larger multiple.

## Exit quiz

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### 5 Questions

Q1.
What is 563 201 rounded to the nearest multiple of 10 000?
500 000
Correct answer: 560 000
563 000
563 200
Q2.
What is the range of numbers that will round to 400 000 when rounding to the nearest multiple of 100 000?
300 000 - 399 999
Correct answer: 350 000 - 449 999
350 000 - 450 000
400 000 - 499 999
Q3.
What is the range of numbers that will round to 670 000 when rounding to the nearest multiple of 10 000?
Correct answer: 665 000 - 674 999
669 000 - 674 000
669 000 - 674 999
670 000 - 674 999
Q4.
4. I am thinking of a 6 digit number. When rounded to the nearest multiple of 100 000, it is approximately equal to 800 000. It is an even number. What could my number be?
Correct answer: 762 488
789 145
83 000
856 012
Q5.
5. I am thinking of a 5 digit number. When rounded to the nearest multiple of 1000, it is approximately equal to 45 000. It is also a multiple of 5. What could my number be?
44 250
Correct answer: 45 145
45 238
45 891