1. Rounding and Estimation
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2. Can I round a two digit number to the nearest 10?
Can I round a three digit number to the nearest 10?
Can I estimate calculations using rounding skills?
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3. What is 13 rounded to the nearest 10?15 22 30 10 40
100 7

4. You have found the correct answer.
Brilliant!
You have found the correct answer.
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5. Try again!
Have another go.
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6. What is 43 rounded to the nearest 10?20 67 12 10 40 50 8

7. You have found the correct answer.
Brilliant!
You have found the correct answer.
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8. Try again!
Have another go.
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9. What is 67 rounded to the nearest 10?30 70 8 11
100 50 98

10. You have found the correct answer.
Brilliant!
You have found the correct answer.
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11. Try again!
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12. Shall we make it harder?
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13. What is 114 rounded to the nearest 10?
100
130
115
120
150
110 7

14. You have found the correct answer.
Brilliant!
You have found the correct answer.
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15. Try again!
Have another go.
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16. What is 155 rounded to the nearest 10?
160
100
150 10
120 50
200

17. You have found the correct answer.
Brilliant!
You have found the correct answer.
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18. Try again!
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19. What is 299 rounded to the nearest 10?
240
130 13
300
100 50
290

20. You have found the correct answer.
Brilliant!
You have found the correct answer.
Next Q

21. Try again!
Have another go.
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22. Activity: Tarsia Puzzle
you have 15 minutes to piece together the puzzle

23. Estimation and Rounding
What is… = 79 50 30 + = 80

24. =
179 70
110 + =
180

25. =
278 50
230 + =
280

26. Activity…

27. Mr. Ferry Shopping… 7.98 7.90 Milk £1.03 £1.00 Bread £0.73 £0.70
Chocolate £2.34
Chicken £3.45
Beans £0.43
£1.00
£0.70
£2.30
£3.50
£0.40
7.98
7.90