June Challenge - Years 3 & 4

Place the numbers 1 to 10 in the circles so that each number is the difference between the two numbers just below it.

Example:  6 – 5 = 1

It will take some perseverance.  You can try different solutions by cutting out numbers to move around on the circles or you can use the interactive area of http://nrich.maths.org/927.

Solutions are to be completed by Thursday 30^th June.  Please post them into the Maths Challenge Box in the picture book library.