Harder mental addition of 2 and 3-digit numbers

Harder Mental Addition Of 2 And 3-digit Numbers Maths Worksheet

Work out the addition questions in your head and just write down the answers.

View all our resources for free

You can view this resource and all our others online absolutely free but we do ask you to Register with your email address beforehand. (If you are already registered, please Login)

You can also print up to 5 sets of worksheets as well as play all the fun maths games for a whole week. (No card details needed)