The class has been very busy discovering many strategies for multiplying double digits (e.g., 23 X 17)
The strategies included:
- using an array http://youtu.be/_Dgh33PZ4wQ
- using comfortable numbers http://youtu.be/sznCVoZijeA
- long multiplication (the well-known method)
- lattice multiplication http://youtu.be/cijuPxHgZAA
Discuss with your child, the strategies that they prefer to use.
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