Challenges and investigations

Place the digits in the rows and columns to make the total shown in the middle.

Some great ideas for children to use as starting points to investigate further.

A look at some of the maths concepts involved with investigations in year 5.

Find examples to back up general statements about numbers, shape etc.

Binary trees are often used in science, but here we use them to sort numbers.

Complete the pyramids using addition and subtraction.

More on odd and even numbers, plus a little bit on multiples.