Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Converting feet to yards is easy. The key is knowing one yard equals three feet. Divide feet by three to get yards. Multiply yards by three to get feet. Estimate by rounding to the nearest multiple of ...

Do you frequently feel that multiplication is difficult or time-consuming? Multiplication speed can significantly increase your confidence in arithmetic, whether you're doing problems in class or ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

No business owner has a crystal ball showing what customers will want during the upcoming year and how much of it they will buy. Fortunately, you can forecast demand using tools and information. While ...

You can use the PRODUCT() function to multiply monetary values in your Microsoft Excel spreadsheet. Functions allow you to perform a specific set of calculations in a cell, column or row. The PRODUCT( ...

The latest estimate of Social Security's cost-of-living adjustment for 2025 slipped to 3% after the government reported 3.3% inflation in May, new calculations showed Wednesday. The 2025 COLA ...

Estimating fractions is an essential skill that can help you make quick and rough calculations in everyday situations, as well as during mathematical problem-solving. Here are twelve steps to help you ...

The humble decimal point may have been invented about 150 years before we previously thought. Experts had previously credited German mathematician Christopher Clavius for the innovation, but according ...

Computer scientists have discovered a new way to multiply large matrices faster than ever before by eliminating a previously unknown inefficiency, reports Quanta Magazine. This could eventually ...

Historians have discovered what may be the world's first decimal point, in an ancient manuscript written 150 years before its next known appearance. There have been many ways to split integers, but ...