Number Operations and Calculation Methods

Take a look at the video and try to find a sequence of moves that will untangle the ropes.

Different combinations of the weights available allow you to make different totals. Which totals can you make?

Can you find ways to put numbers in the overlaps so the rings have equal totals?

Just because a problem is impossible doesn't mean it's difficult...

Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?

The Egyptians expressed all fractions as the sum of different unit fractions. The Greedy Algorithm might provide us with an efficient way of doing this.

Here is a chance to play a fractions version of the classic Countdown Game.

It would be nice to have a strategy for disentangling any tangled ropes...

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?

Watch the video to see how Charlie works out the sum. Can you adapt his method?