Every day during Maths Week Scotland a new puzzle is set by Scotland's Deputy First Minister.

Problem 1 is all about using a broken calculator. Maths teacher Chris Smith and pupils from Grange Academy are here to explain.

Stuck? Then we've got a few hints down below.

And we'll have the answers for you later. Good luck!

Problem 1 is all about using a broken calculator.

Maths teacher Chris Smith and pupils from Grange Academy are giving it a go. Why don't you?

And if you get stuck, we've got a few hints for you.

For Problem 2 you need to work out how many right and wrong answers Dipak gave in a survey.

Maths teacher Chris Smith and pupils from Grange Academy are back to explain what it's all about.

If you need a hand, we've got some tips to help you to the right answers.

For Problem 3 finding the connection means you can add up numbers without actually doing much addition.

Maths teacher Chris Smith and pupils from Grange Academy are back to explain what it's all about.

If that doesn't all add up, you can count (sorry!) on us to give you sum (ouch!) tips.

Problem 4 is about somehow working out who gets paid what out of pairs of statements.

Maths teacher Chris Smith and pupils from Grange Academy are back to lay it all out for you.

Problem 5 is about spotting all the shapes in a diagram...not just the obvious ones.

Maths teacher Chris Smith and pupils from Grange Academy are back to help you figure it out.

Problem 6 is all about school...a school of fish that is.

Maths teacher Chris Smith and pupils from Grange Academy are here to help you spot how many stripes the fish have.

Problem 7 is about working out who is dancing with whom and who played tennis together.

Maths teacher Chris Smith and pupils from Grange Academy have a ball finding the answer.