End of Year Bonus Challenges

The Main Challenge

You are playing Roll3Dice and have just rolled 2, 5 and 6 with your three dice.

Using these three numbers once each, with + – × ÷ available, it is possible to make SEVEN target numbers in the range 1-10, as indicated below.

Can you place 2, 5 and 6 into the gaps on each line so that all seven calculations work out?

•   ◯+◯–◯  =  1
•   ◯–◯÷◯  =  2
•   ◯+◯–◯  =  3
•   ◯×◯–◯  =  4
•   ◯×◯–◯  =  7
•   ◯+◯÷◯  =  8
•   ◯+◯–◯  =  9

For full details, click Roll3Dice or the hashtag #Roll3Dice.

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 Bottom-Left to Top-Right diagonal contains the following seven numbers:

3     9     25     27     33     64     81

Another 2-part challenge for the final day of the year:

Part 1: How many of the listed numbers are neither square numbers nor cube numbers?

Part 2: Use these seven numbers exactly once each, with + – × ÷ available to use in your calculation, to arrive at our favourite target number of 7.

The Daily 7 Challenge

Using the four numbers 2, 3, 4 and 5 once each, with + – × ÷ available, can you arrive at our daily target answer of 7?

The Mathematically Possible Challenge

Using 48 and 12 once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

90    91    92    93    94    95    96    97    98    99

#NumbersIn90s

The Target Challenge

Can you arrive at 366 by inserting 1, 3, 3, 6 and 6 into the gaps below?

•  (²+(◯–◯)²)×(◯²–◯) = 366

Click Paul Godding for details of online maths tuition.

This entry was posted in 7puzzleblog.com. Bookmark the permalink.

This site uses Akismet to reduce spam. Learn how your comment data is processed.