Today’s Challenge
. . . looks straightforward enough but the numbers are written in words, perhaps a bit trickier than you think! Add these four numbers together and write your answer in words:
- Two hundred and four thousand and nine,
- Seventy thousand, nine hundred and eight,
- Four hundred and fifty thousand and seventy,
- One hundred and seven thousand, three hundred and ninety-five.
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 4th & 5th columns of the playing board contain the following fourteen numbers:
3 6 8 11 14 18 20 25 42 44 63 72 77 84
How many numbers listed are NOT multiples of 3, 5 or 7?
Make 351 Challenge
Can you arrive at 351 by inserting 1, 2, 3, 4 and 5 into the gaps on each line?
- (◯+◯)²×double◯–(◯×◯)² = 351
- (◯–◯)³×(◯×◯–◯) = 351
Answers can be found here.
Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.
