Introducing algebra

In 1871 a mathematician called Augustus De Morgan died. De Morgan made a puzzling statement about his age. Can you discover which year De Morgan was born in?

Write a Logo program, putting in variables, and see the effect when you change the variables.

There are three buckets each of which holds a maximum of 5 litres. Use the clues to work out how much liquid there is in each bucket.

Max and Mandy put their number lines together to make a graph. How far had each of them moved along and up from 0 to get the counter to the place marked?

Cassandra, David and Lachlan are brothers and sisters. They range in age between 1 year and 14 years. Can you figure out their exact ages from the clues?

Use the information to work out how many gifts there are in each pile.

Can you work out how many spheres will balance a single pyramid?

Take a counter and surround it by a ring of other counters that MUST touch two others. How many are needed?

Sam's grandmother has an old recipe for cherry buns. She has enough mixture to put 45 grams in each of 12 paper cake cases. What was the weight of one egg?

When Charlie asked his grandmother how old she is, he didn't get a straightforward reply! Can you work out how old she is?