Take a look at these recently solved problems.
Doubling Fives
This activity focuses on doubling multiples of five.
Tangram Tangle
If you split the square into these two pieces, it is possible to fit the pieces together again to make a new shape. How many new shapes can you make?
Got It
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.
Button-Up Some More
How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?
Domino Magic Rectangle
An ordinary set of dominoes can be laid out as a 7 by 4 magic rectangle in which all the spots in all the columns add to 24, while those in the rows add to 42. Try it! Now try the magic square...
Two and Two
How many solutions can you find to this sum? Each of the different letters stands for a different number.