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Can you work out the values of J, M and C in this sum?

An activity making various patterns with 2 × 1 rectangular tiles.

Gravity on the Moon is about 1/6th that on the Earth. A pole-vaulter 2 metres tall can clear a 5 metres pole on the Earth. How high a pole could he clear on the Moon?

This function involves absolute values. To find the slope on the slide use different equations to define the function in different parts of its domain.

Can you work out what a ziffle is on the planet Zargon?

In this version of the story of the hare and the tortoise, the race is 10 kilometres long. Can you work out how long the hare sleeps for using the information given?

Can you see which tile is the odd one out in this design? Using the basic tile, can you make a repeating pattern to decorate our wall?

Use your hand span to measure the distance around a tree trunk. If you ask a friend to try the same thing, how do the answers compare?

Can you replace the letters with numbers? Is there only one solution in each case?

Weekly Problem 47 - 2013
What is the value of the given expression?