Answer these quick fire questions on your mini whiteboards.

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Presentation transcript:

Answer these quick fire questions on your mini whiteboards.

Learning Objective Multiply any integer by 10, 100 and 1000.

Discuss the following numbers…

What is the relationship between these numbers?

What number is missing in the sequence?

What happens when we multiply 19 by 10? It looks like we add a zero, but really all the numbers move one place along the grid to the left.

Now multiply by 100…. Now multiply by 1000…

Mental Maths

Learning Objective Multiply any integer by 10, 100 and 1000 in the context of money.

12000 How can I multiply this number by 10? 100? 1000?

12000 What if I wanted to divide this number by 10? 100? 1000?

4.5 How can I multiply this number by 10? 100? 1000?

4.5 What if I wanted to divide this number by 10? 100? 1000?

Now try these…

Mental Maths

27000 What if I wanted to divide this number by 10? 100? 1000?

Jo’s shelf is 126cm long. She wants to put 10 boxes on this shelf. How much space will she have for each box?

Henri has scored 5923 runs in cricket over 100 matches. How many runs has he scored on average in each match?

Learning Objective Multiply using the grid method including decimals.

STARTING OFF X x 123 First partition each number like this.

Where everything goes… X Now times where the arrows meet (where the dots are)

Totalling X = Now total up all the circled numbers. = =

Learning Objective Multiply using the grid method including decimals.

CLICK ON ME!

STARTING OFF X x 6.2 First partition each number like this.

Where everything goes… X Now times where the arrows meet (where the dots are)

Totalling = Now total up all the circled numbers. = = X