** The Main Challenge
**

One from our range of **Mathelona** number puzzles now available in pocket book format. Your task is to make all three lines work out arithmetically by filling the 12 gaps with the following numbers:

0 0 1 1 2 2 2 2 4 5 6 7

Can you successfully complete this?

◯ + ◯ = 6 = ◯ – ◯

◯ + ◯ = 2 = ◯ × ◯

◯ + ◯ = 7 = ◯ ÷ ◯

Full details of our pocket book can be found by clicking **Mathelona**.

**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 1st & 2nd columns contain the following fourteen numbers:

2 10 13 16 21 22 27 33 45 48 55 56 60 70

What is the sum of the multiples of 11 listed above?

**T****he Factors Challenge**

**The Mathematically Possible Challenge**

Using **4**, **7** and **11 **once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

2 3 5 7 11 13 17 19 23 29

#*PrimeNumbers*

**The Target Challenge**

Can you arrive at 316 by inserting **2**, **4**, **5**, **6** and **7** into the gaps below?

- ◯²×◯²–◯×◯×◯ = 316

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

**Click Paul Godding for details of online maths tuition.**