# day/dydd 9 at 7puzzleblog.com

The Main Challenge

… is from the excellent card game, 24game. Using the numbers 2, 4, 6 and 8 once each, and with all four operations + – × ÷ available, show how you can reach the target number of 24.

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 3rd & 4th rows contain the following fourteen numbers:

3   10   13   25   32   35   36   42   44   45   54   60   66   80

From the list, find the THREE pairs of numbers that have a sum of 57.

The Roll3Dice Challenge

From six of the seven groups of numbers below, it is possible to make today’s target number of 9 when each number in the group is used once and + – × ÷ is available:

•   1   2   3
•   1   3   4
•   2   2   5
•   3   3   4
•   3   5   6
•   4   5   5
•   4   6   6

Which is the only group that CANNOT make 9?

The Mathematically Possible Challenge

Using 45 and 10 once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

11    22    33    44    55    66    77    88    99    110

#11TimesTable

The Target Challenge

Can you arrive at 9 by inserting 3, 4, 5 and 6 into the gaps on each line?

•  ◯×◯–(◯+) = 9
•  ◯+×(–◯) = 9
•  ◯²–◯×(÷◯)² = 9
•  ◯+(◯+◯)÷◯ = 9