Working systematically

list
Being resourceful - Lower Primary number

Age

5 to 7

Number problems for lower primary that will get you thinking.
list
Being resourceful - Primary number

Age

5 to 11

Challenge level

Number problems at primary level that require careful consideration.
problem
River crossing

Age

11 to 18

Challenge level

There is nothing half so much worth doing as simply messing about in boats...
problem
Unequal averages

Age

11 to 14

Challenge level

Play around with sets of five numbers and see what you can discover about different types of average...
problem
Half a minute

Age

11 to 14

Challenge level

Anna, Ben and Charlie have been estimating 30 seconds. Who is the best?
problem
Wipeout

Age

11 to 16

Challenge level

Can you do a little mathematical detective work to figure out which number has been wiped out?
problem
About average

Age

11 to 14

Challenge level

Can you find sets of numbers which satisfy each of our mean, median, mode and range conditions?
problem
Perimeter challenge

Age

11 to 14

Challenge level

Can you deduce the perimeters of the shapes from the information given?
problem
Forwards add backwards

Age

11 to 14

Challenge level

What happens when you add a three digit number to its reverse?
problem
Add to 200

Age

11 to 14

Challenge level

By selecting digits for an addition grid, what targets can you make?