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