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Decimal multiplication inquiry 1

Inquiry Maths

 

Link to the Inquiry Maths website

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Inquiry Maths

Inquiry prompt

 

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Inquiry Maths

Think – Pair – Share

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Inquiry Maths

Inquiry prompt

 

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Inquiry Maths

Link to the Regulatory Cards

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Inquiry Maths

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Explanation

Inquiry Maths

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Inquiry Maths

Multiply and divide by powers of 10

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Inquiry Maths

 

 

 

 

 

 

 

 

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Inquiry Maths

Chains of reasoning

 

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More examples

Inquiry Maths

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Inquiry Maths

Change the multiplicand

 

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Inquiry Maths

Change the multiplier

 

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Lines of inquiry

Change both sides

Inquiry Maths

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Inquiry Maths

 

 

 

 

Change the multiplier and multiplicand

 

 

 

 

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Inquiry Maths

Change the multiplier and multiplicand

Place the decimal point in the correct place without calculating the answer.

 

Make up your own examples.

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Lines of inquiry

Generalise

Inquiry Maths

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Inquiry Maths

Operation on multiplier

Operation on the multiplicand

Operation on the product

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Inquiry Maths

Operation on multiplier

Operation on the multiplicand

Operation on the product

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Inquiry Maths

General rules using positive powers of 10

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Inquiry Maths

General rules using positive powers of 10

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Inquiry Maths