1. LO: Read and write any whole number; round to the nearest 10 or 100.

2. 23,453

4. 23,00025,000

5. 23,453 23,00025,000

6. 23,453

7. 23,40023,500

8. 23,453

9. LO: Use vocabulary of estimation and approximation.

19. Question: How many 1p coins do you think will fit along this metre ruler?

20. Question: How many 10p coins do you think will fit along this metre ruler?

21. So………………… What is the difference between an estimate and a guess?

22. Task: Estimate the number of words in the book. Use a calculator if you wish. Think about: How many words are on 1 page How many pages there are I will be asking you to explain how you came to your estimated figure!!

23. Homework: