Friday, July 01, 2011

Addition and Subtraction: Strategies (CA - AC)


CA-AC
Here's a little trick to help you count on when the larger number is given first.

  • Work out 3 + 8 counting on.
  • Work out 8 + 3 counting on.
  • Which method was easier?
  • 2 + 65!


Use the number line to help you solve the problem.


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