Using Standard Form to Write Large Numbers

1. Using Standard Form to WriteLarge Numbers By www.2july.co.uk

2. Indices of Ten What Ordinary Numbers Are These ? 2 100 10 10 10 10 3 1,000 4 10,000 5 100,000

3. Indices of Ten Notice that the number of zeros matches the index number 2 100 10 10 10 10 3 1,000 4 10,000 5 100,000

4. Multiplying Multiples of Ten Multiply These Numbers 100 x 2 = 200 1,000 x 3 = 3,000 10,000 x 7 = 70,000 100,000 x 9 = 900,000

5. Multiplying Multiples of Ten Did you notice that all you have to do is multiply 1 x whole number & add the zeros behind? 100 x 2 = 200 1,000 x 3 = 3,000 10,000 x 7 = 70,000 100,000 x 9 = 900,000

6. Short Cut for Writing Large Numbers Combine these two steps for writing large numbers. 6 x 10 2 600 = 6 x (10 x 10) = 6 x 100 = 600

7. Short Cut for Writing Large Numbers Remember! The index is the same as the number of zeros when using base 10. 2 6 x 10 600 =

8. What is the Ordinary Number? 7 x 10 2 700 =

9. What is the Ordinary Number? 8 x 10 3 8,000 =

10. What is the Ordinary Number? 9 x 10 4 90,000 =

11. What is the Ordinary Number? 4 x 10 2 400 =

12. What is the Standard Form? 2 500 5 x 10 =

13. What is the Standard Form? 3 6,000 6 x 10 =

14. What is the Standard Form? 4 90,000 9 x 10 =

15. What is the Standard Form? 5 700,000 7 x 10 =