Conjecturing and generalising

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

Four strategy dice games to consolidate pupils' understanding of rounding.

I added together some of my neighbours' house numbers. Can you explain the patterns I noticed?

In each of these games, you will need a little bit of luck and your knowledge of place value to develop a winning strategy.

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?

Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?