# DAY/DYDD/GIORNO/NAP 357: The Main Challenge

An 11-step number trail involving all four arithmetical operations.

• multiply by 5
• 25% of this
• 5
• 1/3 of this
• ×4
• subtract twenty-four
• +9
• divide by 7
• ÷3 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 columns contain the following fourteen numbers:

2   8   10   11   14   16   18   25   33   44   45   48   70   84

What is the lowest prime number you can make by adding three different numbers from the list? The Factors Challenge

Which FOUR of the numbers below are factors of 357?

3    5    7    9    11    13    15    17    19    21    23 The Mathematically Possible Challenge

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

5    10    15    20    25    30    35    40    45    50

#5TimesTable The Target Challenge

Can you arrive at 357 by inserting 4, 5, 7, 8 and 9 into the gaps below?

•  (◯++◯)×◯×√◯ = 357   