**Today’s Challenge**

. . . is a **MATHELONA** number puzzle where you must solve all four lines arithmetically by replacing the 16 ◯’s below with digits 0-9.

Each digit 0-9 can only be inserted a maximum of TWICE in the whole puzzle:

◯ + ◯ = 5 = ◯ + ◯

◯ + ◯ = 3 = ◯ – ◯

◯ + ◯ = 10 = ◯ × ◯

◯ + ◯ = 1 = ◯ ÷ ◯

If you enjoyed this, click **MATHELONA** for details of my number puzzle pocket book.

**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 5th & 7th columns of the playing board contain the following fourteen numbers:

5 8 9 11 14 18 24 25 28 32 44 50 66 84

Which three numbers become multiples of 7 when 11 is subtracted from them?

**Make 329 Challenge**

Can you arrive at 329 by inserting 1, 4, 9, 16 and 25 into the gaps below?

◯×◯×(◯+√◯)+◯ = 329

**Answers **can be found **here**.

**Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.**