** The Main Challenge**

This is perhaps a bit trickier than you think! Add these four numbers together and write your answer in words:

- Two hundred and four thousand and nine,
- Seventy thousand, nine hundred and eight,
- Four hundred and fifty thousand and seventy,
- One hundred and seven thousand, three hundred and ninety-five.

**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 4th & 5th columns contain the following fourteen numbers:

3 6 8 11 14 18 20 25 42 44 63 72 77 84

How many numbers listed are NOT multiples of 3, 5 or 7?

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

**The Mathematically Possible Challenge**

Using **1**, **3** and **9 **once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

10 20 30 40 50 60 70 80 90 100

#*10TimesTable*

**The Target Challenge**

Can you arrive at **351** by inserting **1**, **2**, **3**, **4** and **5** into the gaps on each line?

- (◯+◯)²×double◯–(◯×◯)² = 351
- (◯–◯)³×(◯×◯–◯) = 351

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

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