** The Main Challenge**

This a number puzzle similar to my **Mathelona** series of challenges, but much more difficult.

Your task is to fill all 24 gaps below with the numbers **1-24**. Each number should appear once each and ALL eight lines/equations must work out arithmetically.

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

◯ + ◯ = ◯

If you enjoy, feel free to click **Mathelona** to find out more, or even place an order for my pocket book of number puzzles.

**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 column contains the following seven numbers:

8 11 14 18 25 44 84

Using these seven numbers exactly once each, with + – × ÷ available to use in your calculation, can you arrive at the target number of **100**?

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

**The Mathematically Possible Challenge**

Using **4**, **8** and **12 **once each, with + – × ÷ available, which are the only TWO numbers 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 **362** by inserting **4**, **9**, **16**, **25** and **36** into the gaps below?

- ◯×(◯+√◯–√◯)+√◯ = 362

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

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