1. Long Multiplication

2. Starter! Write 3 Bullet Points: What do you know about Interior and Exterior angles? 1. 2. 3.

3. Long Multiplication Objectives All can do long multiplication Most can use two different methods to solve long multiplication questions Some can estimate answers using long multiplication

4. Multiply these numbers… 10 X 20 = 5 X 20 = 30 X 5 = 70 X 3 = 25 X 5 = 40 X 6 = 18 X 15 = 24 X 11 = 39 X 22 = 200 100 150 210 125 240 270 264 858

5. Three Different Methods 1. Grid method 2. Diagonal method 3. Long method

6. 1. Grid Method X405 20 4 Work out 45 X 24 800100 16020 800 + 100 + 160 + 20 = 1080 You try…! 1. 54 X 17 = 2.81 X 64 = 3.29 X 45 = 918 5184 1305

7. 2. Diagonal Method Work out 45 X 24 You try…! 1. 27 X 82 = 2.53 X 21 = 3.96 X 63 = 2214 1113 6048

8. Diagonal Method continues… 452 X 371 167692

9. 3. Long method… Work out 45 X 24 4 5 X 2 4__ You try…! 1. 23 X 46 = 2.54 X 73 = 3.92 X 14 = 1058 3942 1288

10. Long Multiplication Objectives All can do long multiplication Most can use two different methods to solve long multiplication questions Some can estimate answers using long multiplication

11. WILT 1. 2. What I am unsure about…. 1.