Sensational Subtraction

We are learning to solve subtraction problems using decimal numbers.

 

List 3  prime numbers: 1 5 7 

 

List the factors of 24: 2 3 4 6 8 12 

 

List the common factors of 24 and 48:

2 4 6 8 12

 

Mr Burt has $1000 in the maths budget at the start of the year.

 

He starts by purchasing 650 maths books, at $0.30 each. His total spend is: 

$195

 

 How much does he have left?

$455

Next he spends $167.70 on rulers and protractors

 

How much is left now?

$287.30

 

Then he purchases 5 text books, which cost $26.50 each. The 5 textbooks cost:

$132.50

 How much does he have left?

$155.80

 

Finally he spends $6.70 on stickers.

 

 How much does he have left?

$149.10

 

4 – 0.768 = 3.232

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