Comparing and ordering numbers

problem

One to Fifteen

Age

7 to 11

Challenge level

1 out of 3

Can you put the numbers from 1 to 15 on the circles so that no consecutive numbers lie anywhere along a continuous straight line?
problem

Sort Them Out (2)

Age

7 to 11

Challenge level

1 out of 3

Can you each work out the number on your card? What do you notice? How could you sort the cards?
problem

In Order

Age

7 to 11

Challenge level

1 out of 3

Can you rank these quantities in order? You may need to find out extra information or perform some experiments to justify your rankings.
problem

Sorting the Numbers

Age

7 to 11

Challenge level

1 out of 3

Can you put the numbers in the correct place in this Carroll diagram?
problem

Greater Than or Less Than?

Age

7 to 11

Challenge level

1 out of 3

Use the numbers and symbols to make this number sentence correct. How many different ways can you find?
game

Dicey Operations in Line for Two

Age

7 to 11

Challenge level

1 out of 3

Dicey Operations for an adult and child. Can you get close to 1000 than your partner?
problem

True or False?

Age

7 to 11

Challenge level

1 out of 3

Without doing lots of calculations, can you decide which of these number sentences are true? How do you know?
problem

Ordering Journeys

Age

7 to 11

Challenge level

2 out of 3

How would you put these journey lengths in order?
problem

Worms

Age

7 to 11

Challenge level

2 out of 3

Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?
problem

The Magic Number and the Hepta-Tree

Age

7 to 11

Challenge level

2 out of 3

Find the exact difference between the largest ball and the smallest ball on the Hepta Tree and then use this to work out the MAGIC NUMBER!