Skip to content

Using mental strategies to add and subtract

Add twenty and take one is much quicker than trying to add nineteen. But not always!

Preview of ' Using mental strategies to add and subtract'

Create my FREE account

including a 7 day free trial of everything

Already have an account? Sign in

Free Accounts Include

  • View / Print monthly free resources forever
  • View everything for 7 days
  • Choose any 5 resources to download

Subscribe to our newsletter

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

© Copyright 2011 - 2024 Route One Network Ltd. - URBrainy.com 11.5.0