The Main Challenge
. . . is a regular favourite of ours where at least one decimal number is present when trying to arrive at our signature target number, 7.
Using the numbers 0.25, 2, 4 and 6 once each, and with the four arithmetical operations + – × ÷ available, can you arrive at 7 using TWO completely different ways?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 3rd & 5th columns contain the following fourteen numbers:
4 8 11 12 14 15 17 18 25 35 44 80 81 84
How many pairs of consecutive numbers are listed?
The Factors Challenge
Which FOUR numbers below are factors of 342?
2 3 4 5 6 7 8 9
The Mathematically Possible Challenge
Using 2, 9 and 12 once each, with + – × ÷ available, which FOUR numbers is it possible to make from the list below?
2 3 5 7 11 13 17 19 23 29
#PrimeNumbers
The Target Challenge
Can you arrive at 342 by inserting 2, 3, 4, 5 and 5 into the gaps below?
- (◯²+◯+◯)×(◯²+◯) = 342
Answers can be found here.
Click Paul Godding for details of online maths tuition.
