MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
If you are asked to multiply numbers, it is easier to multiply by 10 or 100 if possible. Look to re-group or re-order the multiplication factors to make your mental calculations easier. The same is true with addition- you can add in whatever order you want to, so add numbers that give you factors of 10 if possible.
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