Sensational Subtraction
We are learning to solve subtraction problems using decimal numbers.
List 3 prime numbers: 1 5 7
List the factors of 24: 1 2 4 6 8 12 24
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 = 4.232.