What Do Fractional Exponents Mean?

Fractions as exponents?! Don’t worry, it’s just notational shorthand for powers and roots. Once you understand it, they’re easy as pie! Check it out.

Using Factor Trees to Find GCFs and LCMs

Today we’ll look at an easy method for finding the greatest common factor and least common multiple of two or more numbers.

Watch or read below 🙂

The 1 and Four 7’s Number Puzzle Solution

This was our challenge:

Use the numbers 7, 7, 7, 7 and 1 to create an expression that equals 100.

For this exercises you may use the addition, subtraction, multiplication and division operators along with…

Euclidean Algorithm Explained Visually

(and the lock riddle solution)

The 8, 8, 3, 3 Puzzle Solution

How’d it go? Did you solve it?

You are given the numbers 8, 8, 3 and 3. With only the operations of addition, subtraction, multiplication and division use the above numbers to yield 24

Left-to-Right Mental Addition Strategy

mental math series, part 12

Sometimes a change in perspective can make all the difference.

If you like the traditional addition algorithm but find it difficult to do mentally, maybe…

The Euclidean Algorithm

The Euclidean Algorithm is one of the oldest numerical algorithms still in use today. Attributed to ancient Greek mathematician Euclid in his book “Elements” written approximately 300 BC, the algorithm serves as an effective method for finding the greatest common divisor of two whole…

Generating Factors Using Prime Numbers

& The Fundamental Theorem of Arithmetic

This method utilizes the unique prime factorization of a number to generate its factors. And the best part is that it doesn’t require any division, just basic math facts…

Understanding Common Core Math Models

from elementary through high school, consistency is key

This Math Problem Has Australian Students Confused

The 50 Cent Coins Problem

Viral Math Problem Explained

Australian students took to Facebook and Twitter this week to express frustration with a geometry…