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Arithmetic Workout  

Multiplication Workout  Introduction  Getting Started  Preknowledge  The Simulation  Activities  Conclusions  Resources and Links  Definitions  
Activity 

The goals of this activity is to improve your multiplication speed on the medium numbers and become comfortable with multiplying larger numbers.

Special thanks to the Physics Education Technology PhET Team
Arithmetic Workout 

<flash>file=Arithmetic_rjk.swf 
Reflection
When you have filled in all the squares, check out the diagonal line of numbers that runs from the × to the lower right corner of grid. Do you notice any patterns?
Hopefully you noticed that the same numbers occur on each side of the diagonal. Think about why this happens and talk to your mates about it. 