1.4 Fractions

Showing posts with label

**subtracting**. Show all postsShowing posts with label

**subtracting**. Show all posts## Friday, November 16, 2012

### Visual Real Numbers and Their Operations

Labels:
Absolute value,
adding,
algebra,
common denominator,
decimals,
dividing,
exponent,
fractions,
integers,
math,
multiplying,
Number line,
order of operations,
PEMDAS,
percents,
square root,
subtracting,
video

## Saturday, November 3, 2012

### Adding and Subtracting Integers

When first learning how to subtract real numbers, it is useful to think of this operation as adding opposite numbers. For example, 5 − 2 can be thought of as adding five with the opposite of two 5 + (−2). This may seem cumbersome, but sometimes it can help in understanding problems where you wish to subtract a negative number.

Two sequential negative signs, as seen above, is equivalent to addition. When adding two negative numbers the result will be negative. For example, if you spend $12.00 for a pair of shoes and $25.00 for a bag then you will owe $37.00 at checkout, −12 − 25 = −37.

**Add and Subtract.**

**Video Examples on YouTube:**

Subscribe to:
Posts (Atom)