Today’s Challenge
. . . is very famous in Japan, having recently been used as an integral part of a TV advert for Google’s Nexus 7 tablet. Click this YouTube link for a browse.
Using the numbers 1, 1, 5 and 8 exactly once each, with + – × and ÷ available, can you beat this tricky Japanese challenge by arriving at the target answer of 10?
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 2nd & 5th rows of the playing board contain the following fourteen numbers:
6 7 8 16 17 21 28 48 50 55 63 64 81 84
How many more even numbers than odd numbers are listed above?
Make 209 Challenge
Can you arrive at 209 by inserting 2, 7, 9 and 12 into the gaps below?
(◯+◯)×(◯+◯) = 209
Answers can be found here.
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