Summary: <br> <br> <a href="https://gumroad.com/l/wHvQ" target="_blank"></a><br> <br> <a href="https://gumroad.com/l/wHvQ" target="_blank"></a><br> <br> <br> <br> <a href="http://www.audiogedprep.com" target="_blank">http://www.audiogedprep.com</a><br> <br> Full Course is available at:<br> <br> <a href="https://gumroad.com/l/wHvQ" target="_blank">https://gumroad.com/l/wHvQ</a><br> <br> For $59.99<br> <br> <br> <br> Lesson Summary:<br> <br> Audio GED Prep Mathematics Lesson 1 <br> <br> Integers and Decimal<br> <br> Definition of an integer/decimal<br> <br> An integer is a positive or negative number that does not have a decimal or fraction. These are what are used when counting objects. When a decimal point is present, everything to the left is an integer, and everything to the right is a decimal.<br> <br> A decimal is a part of an integer. Numbers closer to the decimal point are larger, which is the opposite of how it is for integers.<br> <br> Positive and negative numbers<br> <br> In math, you might see what is called a number line, in which the middle point is marked 0, and numbers are listed as points on a line going out to the left and right. The number 0 is neither positive nor negative, and everything to the right of 0 is a positive number, and everything to the left of 0 is a negative number. You indicate a negative number by putting a dash/minus sign in front of it.<br> <br> Negative numbers have their own set of rules. When you add a negative number, it is the same as subtracting that same number. If you subtract a negative number, it is the same as adding that same number. Just remember that these two are reversed. When you multiply two negative numbers as well, you will always get a positive number. (The minus signs cancel each other out.) If, however, you multiply a negative number and a positive number, you will always get a negative number.<br> <br> Addition<br> <br> Addition is when you take two numbers and combine them to create a new total. Addition is indicated by a plus sign, which looks like a small cross. When you speak an addition equation, you say “five plus six is eleven”, which is the same as 5 + 6 = 11.<br> <br> Subtraction<br> <br> Subtraction is when you take two numbers and take one away from another to create a new total. Subtraction is indicated by a minus sign, which looks like a small dash. When you speak an addition equation, you say “ten minus nine is one”, which is the same as 10 - 1 = 9.<br> <br> Multiplication<br> <br> Multiplication is when you take one number and multiply that number by another number. Multiplication is indicated by a small X or sometimes an *. When you speak a multiplication equation, you say “four times three is twelve”, which is the same as 4 x 3 = 12 or 4 * 3 = 12.<br> <br> Division<br> <br> Division is when you take one number and divide into the number of parts indicated by a second number. Division is indicated by a division sign (÷) or sometimes by a slash (/). When you speak a division equation, you say “ten divided by two equals five”, which is the same as 10 ÷ 2 = 5 or 10/2 = 5.<br> <br> Absolute value<br> <br> Absolute value refers to how many units a number is worth, no matter whether it is positive or negative. You can mark the absolute value by putting vertical lines around a number, such as |2|.<br> <br> The absolute value of ten (|10|) is ten, and the absolute value of negative 10 (|-10|) is still 10.<br> <br> Comparisons<br> <br> Sometimes in math, you need to talk about whether something is greater than or less than, equal to, or not equal to something else.<br> <br> To show that something is greater than something else, you use the sign >.<br> <br> Example: 7 > 4<br> <br> The sign ≥ means “greater than or equal to”.<br> <br>
