Math+Notes


 * INTEGERS:**
 * Definition: Positive and negative numbers. Positive numbers are greater than 0. Negative numbers are less than 0. Zero is not positive or negative.**


 * Opposites: The positive and negative version of the same number.**
 * Example: +77 and -77 are opposites.**
 * Opposites always add to 0.**
 * Example: 62 + -62 = 0**
 * In Real Life:**
 * Positive Examples: Getting paid Gaining anything**
 * Depositing $ Above sea level**
 * Negative Examples: Buying Losing anything**
 * Withdrawing $ Below sea level**
 * Absolute Value: Tells how many units an integer is from zero. Absolute value is always the positive version of the integer.**
 * Symbol: l l**
 * Example: l 13 l......Say, "The absolute value of 13 is 13."**
 * l -99 l......."The absolute value of negative 99 is 99."**
 * Comparing and Ordering: < Less than > Greater than = Equal to**
 * The further you go right or up from 0, the value increases**
 * The further you go left or down from 0, the value decreases**
 * Examples: -8 < - 6 because it is further left on a number line**
 * 8 > 6 because it is further right on a number line**
 * -57 > -101**
 * l -28 l = 28**


 * Order from least to greatest: -1001 < -9 < -5 < 7 < 50**
 * Number Lines: Can be horizontal or vertical. Positive numbers are to the right of 0 or above 0. Negative numbers are to the left of 0 or below 0.**
 * Horizontal: Numbers increase in value as you move right. Numbers decrease in value as you move left.**
 * Vertical: Numbers increase in value as you move up. Numbers decrease in value as you move down,**