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Tuesday 10 March 2020

~Serious Subtraction 3~

  Serious Subtraction
We are learning to solve subtraction problems using decimal numbers.

Times Table Practice:

List the first 5 prime numbers:

List the multiples of 6:

List the factors of 24:

List the common factors of 24 and 48:

Show your working for the following problems, either on here or in your books

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, 650 x 3 = 1950, 1950 / 10 = 195


 How much does he have left? 1000 - 195 = $805

Next he spends $167.70 on rulers and protractors 

How much is left now? 805 - 167.70 = 637.30, 


Then he purchases 5 text books, which cost $26.50 each. The 5 textbooks cost: 5 x 26 = 130, 5 x 0.50 2.50, $132.50

 How much does he have left? 637.30 - 132.50 = $504.80


Finally he spends $6.70 on stickers.

 How much does he have left? $504.80 - 6.70 = 498.10

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