problem
Bracelets
Age
7 to 11
Challenge level
Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?
problem
Square corners
Age
7 to 11
Challenge level
What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?
problem
First connect three
Age
7 to 11
Challenge level
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
