Fill the beaker to explore differences.

Differences

Substraction and addition in context

Combine rapid addition and subtraction skills with reading from scales.

Vary the challenge with different scales to include some estimation practice – a truly versatile number tool!

Already a member? You need to log in to access this resource.

Liked this? Try these:


Adobe Flash Player

We use cookies to deliver functionality and provide you with a better service. By continuing to browse our site you are agreeing to our use of cookies. Find out more.

Don't show this message again.