You’re reading Significant Digits, a daily digest of the numbers tucked inside the news. For even more facts, figures and discussion, check out our live FiveThirtyEight Politics podcasts in Texas in ...

You’re reading Significant Digits, a daily digest of the numbers tucked inside the news. Every month, Purdue University and CME Group ask 400 agricultural producers something to the nature of “hey how ...

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 ...

The digits in a number that have actual value. For example, in the number 00005208, the 5-2-0-8 are the significant digits. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires ...

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 ...

Use rounded values to estimate close the answer to a calculation. This is a useful non-calculator skill. Refresh your knowledge with these guides on rounding and significant figures. Rounding to ...

The answer to this week’s contest crossword is an 11-letter word. Email your answer in the subject line to crosswordcontest@wsj.com.