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Friday, July 1, 2011
Addition and Subtraction: Strategies (CA - AC)
CA-AC
YARDSTICK ADDITION
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!
MISSING NUMBERS
Use the number line to help you solve the problem.
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