Addition and subtraction of 2-digit numbers

Mental addition and subtraction of 2-digit numbers. These are about as hard as you would expect to get without using written methods.

Create my FREE account

including a 7 day free trial of everything

Email Address

Password

Newsletter

The URBrainy email newsletter (sent every 2 weeks) provides resource updates and helpful guides for teaching and learning.

Yes, I would like to receive the URBrainy newsletter.

I agree to the Terms and Conditions and Privacy Policy

Already have an account? Sign in

Using place value grids with addition and subtraction.

Use the place value chart and counters to help with subtracting 4-digit numbers.

Use the place value table to help add and subtract.

Subtract multiples of 100 from 4-digit numbers with bar models.

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

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