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## Rhonni D.'s Resources

Suppose you have a large number like 684, and you need to divide or factor it. You can look at the number and get a few clues that will help you. First, recognizing that the number is even, you know it's divisible by 2. But guess what? If you add the sum of numbers together, and they equal a multiple of 3, then the number is divisible by 3. In this case, 684 (6+8+4) equals 18, which... read more

It's a good idea to be neat when doing algebra. If you are having difficulty adding or subtracting horizontally, try doing it vertically, lining up the like terms. A lot of math teachers will give at least partial credit if part of the equation is correct. Also, when your work is neat, you will be more apt to locate your errors prior to submitting your work. I demonstrate this neatness in the... read more

# Fractions - Adding and Subtracting - Part 2b

This video takes combining unlike denominators a bit further, however, uses the exact steps as in video Fractions, Part 2a.

# Fractions - Part 2a - Adding and Subtracting Simple Fraction

This video explains adding fractions with unlike denominators. I use this method because the steps in it make adding polynomial fractions with unlike denominators a lot easier. The exact same steps can be used for polynomials (video Fractions Part...

# Fractions - Part 1 - Reducing

This video explains and compares reducing a "simple" fraction with a polynomial fraction, with a detailed explanation of both.