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A strategy for multiplying. Multiplying using the Grid Method.

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Presentation on theme: "A strategy for multiplying. Multiplying using the Grid Method."— Presentation transcript:

1 A strategy for multiplying

2 Multiplying using the Grid Method

3 Partition each number first 24 x 35= X

4 24 x 35= X

5 24 x 35= X

6 24 x 35= X

7 24 x 35= X

8 24 x 35= X

9 24 x 35= X

10 24 x 35= X

11 24 x 35= X

12 27 x 4 = ? 36 x 3 = ? X = 108 X = 108

13 A strategy for dividing…

14 …using the ‘chunking’ method

15 84 ÷ 6 = 684 we know 10 x we know 4 x

16 192 ÷ 8 = 1928 we know 10 x we know 10 x we know 4 x

17 How can we apply our skills

18 L.O. To identify and use appropriate operations to solve word problems. Success Criteria I understand the different vocabulary for multiplication and division. I can use RUCSAC to complete one step word problems. I can decide whether to use a mental or written method to find the answer. I can use a written method for calculations. All Blue plus: I can use RUCSAC to solve two step word problems. All Blue plus: I can use RUCSAC to solve complex multi-step word problems. I can check my answers using the inverse operation.

19

20 Jack had £1000 to go on holiday. His hotel cost £55 a night all inclusive. He stayed for 2 weeks and had a great time. On his return he shared out the money he had left with his 5 children. How much money did they each receive?

21 X X x 14 = =

22 230 ÷ 5 = 2305 we know 10 x we know 30 x we know 6 x

23 Check : £46 x £5 = £230 ???

24 Your challenge…… Using the format we have practised, can you solve your word problems, using RUCSAC? And check your answers!

25 L.O To identify and use appropriate operations to solve word problems. Success Criteria I understand the different vocabulary for multiplication and division. I can use RUCSAC to complete one step word problems. I can decide whether to use a mental or written method to find the answer. I can use a written method for calculations. All Blue plus: I can use RUCSAC to solve two step word problems. All Blue plus: I can use RUCSAC to solve complex multi-step word problems. I can check my answers using the inverse operation.


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