Being resilient

There are 51 NRICH Mathematical resources connected to Being resilient
Rolling that cube
problem

Rolling that cube

Age
5 to 11
Challenge level
filled star empty star empty star
My dice has inky marks on each face. Can you find the route it has taken? What does each face look like?
Wipeout
problem

Wipeout

Age
11 to 16
Challenge level
filled star filled star empty star
Can you do a little mathematical detective work to figure out which number has been wiped out?
Forwards Add Backwards
problem

Forwards Add Backwards

Age
11 to 14
Challenge level
filled star empty star empty star
What happens when you add a three digit number to its reverse?
Add to 200
problem

Add to 200

Age
11 to 14
Challenge level
filled star empty star empty star
By selecting digits for an addition grid, what targets can you make?
Overlaps
problem

Overlaps

Age
11 to 14
Challenge level
filled star filled star empty star
Can you find ways to put numbers in the overlaps so the rings have equal totals?
Number Daisy
problem

Number Daisy

Age
11 to 14
Challenge level
filled star empty star empty star
Can you find six numbers to go in the Daisy from which you can make all the numbers from 1 to a number bigger than 25?
Difference Sudoku
problem

Difference Sudoku

Age
14 to 16
Challenge level
filled star filled star filled star
Use the differences to find the solution to this Sudoku.
Kite in a Square
problem

Kite in a Square

Age
14 to 18
Challenge level
filled star filled star empty star
Can you make sense of the three methods to work out what fraction of the total area is shaded?