# Marvellous Maths

### We Are Learning to make tidy numbers (WALT)

We know we are successful when:

• I can make a tidy 10

• I can add the 10s together

• I can add the ones together

Purpose

Room 1 are learning around making a tidy 10 in order to add numbers more easily.

Tidy tens are when students make a number ending with a zero to help with adding, for example, 28+9 would be 30+7 which is easier to add.

Initially, the students used materials to make their numbers, manipulating the counters on tens frames to help them.

They then moved to use a whiteboard to create the same image, drawing the tens frames. They finished by recording the same strategy in their books.

The purpose of this is to take children from having to use equipment to be able to write the problems and then ‘image’ the numbers in their heads.

Initially, when the materials were taken away, they were worried they couldn’t do the task. Using the whiteboards was a nice transition to then writing the equations in their books. They were very excited to be able to do this in their books and are keen to keep practising this strategy.

Their next steps are to work out bigger addition problems then transferring what they have learnt to subtracting numbers.