More quick addition and subtraction

A mixed bag of addition and subtraction: good for seeing whether children can use their skills to add and subtract quickly ?in their heads?.

Create my FREE account

including a 7 day free trial of everything

Email Address

Password

I agree to the Terms and Conditions and Privacy Policy

Already have an account? Sign in

A good revision exercise on mentally adding and subtracting multiples of 10.

Mental addition and subtraction of multiples of 100, including crossing over the thousands.

Mental addition questions which get quite tricky.

Add two 4-digit multiples of 100 whith exchange.

The latest news, articles, and resources, sent to your inbox weekly.

URBrainy named one of the World’s Top EdTech Companies by TIME Magazine.