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3. 8 47544295 75051229 98616411000’s100’s10’s1’s10 000’s1/101/1001/1000 40 000 4004/10 5 00050 2/100 6 1/1000 9 000 Our Denary/Decimal number system is Hindu-Arabic in origin and has taken hundreds of years to evolve into its current form. Although only ten symbols are used we are able to use them to write any number no matter how large or small. This is because the place of each symbol within the number determines its value. Place Value 0 1 23 4 5 6 78 9

4. 3/10 4/100 5/1000 Ordering Decimal Numbers 2.8 2.692.345 2 Wholes 8/10 2 Wholes 9/100 6/10 1 2 3

5. Ordering Decimal Numbers 2.69 2.3452.8 3/10 4/100 5/1000 8/109/100 6/10

6. 1.65  1.7 1.66 1.67 1.681.691.7

7. Put the following numbers in ascending order (smallest first). 0. 7 5 60. 5 7 30. 5 6 30. 4 6 7 Checking the 1/10’s digit first Checking the 1/100’s digit 0. 4 6 7 0. 5 6 30. 5 7 30. 7 5 6

8. Put the following numbers in ascending order (smallest first). 0. 3 5 60. 3 4 30. 3 0 30. 3 5 1 All 1/10’s digits are the same, so checking the 1/100’s digits 0. 3 0 3 0. 3 4 3 1/10’s and 1/100’s digits are the same so checking 1/000’s. 0. 3 5 10. 3 5 6

9. 3. 0 0 5 23. 0 0 3 23. 0 1 2 23. 0 0 4 9 Put the following numbers in ascending order (smallest first). 3. 0 1 2 2 Checking 1/000’s. 3. 0 0 3 2 3. 0 0 4 9 3. 0 0 5 2 All 1/10’s digits are the same, so checking the 1/100’s digits Biggest number