Unit
Decimals and Percents
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
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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 we want to know the square root of 50, we want to first think of perfect squares around 50, like how 7 squared is 49 and 8 squared is 64. Since 50 is between 49 and 64 and closer to 49, the square root of 50 must be between 7 and 8 but closer to 7. Guess 7.1 and square it by hand, and see that it's too high, so now we have it narrowed down to between 7.0 and 7.1 . Next guess a value closer to 7.1 and continue the process to get an approximation to the nearest hundredth.
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