Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. So far we've talked about the big ideas behind significant ...

Leave the digit the same if the next digit is less than 5 (this is called rounding down) but increase it by 1 if the next digit is 5 or more (this is called rounding up). The rounded value must be a ...

Suppose I am working on a problem and I wish to calculate the density of something. I measure the mass to be m = 24.5 grams and the volume is V = 10 cm 3. In this case the density would be: ALERT!

Students distinguish between accuracy and precision of measurements. Accuracy, Precision, and Significant Digits: Students distinguish between accuracy and precision of measurements and make ...

Scientific American presentsMath Dudeby Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. Did you know that your calculator occasionally lies to you? Okay, ...