1. Let’s remember 2 things

2. 1. Multiplying by 10,100,1000 Multiply by 10 Multiply by 100 Multiply by 1000 Add one 0 Add two 0’sAdd three 0’s since 10 has one 0 since 100 has two 0’s since 1000 has three 0’s Shortcut? S

3. So how do we work these out? a)730 ÷ 10 = 73 ( a zero was removed) b) 1 900 000 ÷ 100 = 19000 (two zeros were removed) c) 17 3 006 000 ÷ 1000 =173006 (three zeros were removed)

4. So, for division we REMOVE the 0’s But what if the whole number does NOT end in 0’s ?

5. 2. Dividing whole numbers with remainders

6. So how do we work these out? a)18 ÷ 10 = 1 remainder 8 or 1.8 b) 374 ÷ 10 = 37 remainder 4 or 37.4 c) 257 ÷ 100 = 2 remainder 57 or 2.57 d) 81352 ÷ 1000 = 81 remainder 352 or 81.352

7. Shortcut Divide by 10Divide by 100Divide by 1000 Move decimal point to the left once Move decimal point to the left twice Move decimal point to the left three times since 10 has one 0 since 100 has two 0’s since 1000 has three 0’s

8. To Divide by 10,100,1000 REMOVE 0’s or Move point to the left

9. Examples 23 ÷10 = 2 3 = 2.3 25000 ÷ 100 = 2 5 0 0 0 = 250

10. Examples 12350 ÷ 1000 = 1 2 3 5 0 = 12.350 624 ÷ 100 = 6 2 4 = 6.24

11. Online Game https://www.mangahigh.com/en/maths_games/ number/calculations_with_whole_numbers_(int egers)/multiply_and_divide_whole_numbers_by _10,_100_and_1000

12. 12.314.23.22 ÷ 10 1.231.420.320.2 Answers

13. 532234320210 ÷ 100 5.322.343.22.1 Answers

14. 3.234.2332.1253 ÷ 1000 0.00320.03420.33210.253 Answers

15. Homework Pg 26 Exercise 2g Work out (giving your answers in decimal form) 1-12