Today’s Challenge
What is the sum of all multiples of 0.5 from 10 to 20 inclusive?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84.
The 2nd & 3rd rows contain the following fourteen numbers:
8 13 17 25 28 36 42 45 48 55 63 64 66 80
How many multiples of 3 are on the list?
Make 83 Challenge
Can you arrive at 83 by inserting 2, 5, 8 and 9 into the gaps on each line?
- (◯+◯)×◯–◯ = 83
- ◯²+◯×◯+◯ = 83
- [(◯+◯)²–√◯]÷◯ = 83
Answers can be found here.
Click Paul Godding for details of online maths tuition. Wherever you are in the world, please get in touch.
