|7.||It is possible to write down the digits 1 to 9 (writing each once and once only, and in order) and then place ordinary arithmetical signs as necessary so that the answer to the entire sum is 100.|
For example -
Note there are 12 possible answers but only 1 need be given.
|8.||This brief message has been written in cipher.|
Each letter in the original message has been substituted by some other letter.
Can you work out what the original message might have been?
|9.||Kerry and Nick were going to cut the grass on their square lawn. They agreed that each should cut one-half of the area. |
Kerry went first and cut a border 2 metres wide all the way around.
After doing a few sums, Nicki agreed that exactly one-half had been cut and happily cut the rest.
What was the area of the lawn?
The winner of Competition #2 was Matt Chamberlain of Year 10, Reading School
The answers were:
|5.||There were 4 possible answers to the complete sum,|
but in all of them the value of SOME was 9016
|6.||Carter used 13 metres more fencing than Martindale.|
Martindale's Pythagorean triplet was 9, 40, 41
Carter's was 16, 30, 34