Use place value cards to practice rounding numbers to the nearest ten and hundred. Warm up with a Mystery Math Mistake to hunt for the mistake made counting up on the number line. Use place value ...

Imagine needing to estimate the total cost of the items in your grocery basket to decide whether to put something back. So you round to the nearest dollar for each potential purchase, using the “round ...

Excel displays the original number up to 11 digits. When you enter a number that has more than 11 digits, Excel does not display the original value. Instead, it displays the number in the exponential ...