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 ...

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

How many cups is a pint or a quart or a gallon? How many teaspoons is each? When you're cooking and have to quickly convert kitchen measurements, a graphic chart like this is a great help. Sometimes ...