Just starting the GED? Beginners will learn basic #GED math skills that will help develop a strong foundation that should make GED math easier. This video is an excellent start place for beginners, and will still help those who have been studying for a while but are struggling. We’re also going to look at some common GED math mistakes and how to avoid them.
Please subscribe if you'd like to see more videos like this: ru-vid.com...
00:00 Intro
00:14 Place values
00:40 Place values example
1:18 Comparing & ordering numbers
3:28 Rounding explained with examples
7:28 Reading basic signs and symbols practice
9:04 Order of operations/PEMDAS
10:59 Word problem strategy/tips
13:23 Word problem examples
16:02 Translating/Writing equations
22:55 Solving equations
28:20 Common math mistakes
For more math help, here are the links to some other math videos I made:
Identify place values, Compare and order #’s, Rounding: • GED Math Rounding, Com...
Single and multi-step word problems: • GED Math Word Problems...
Order of operations: • How to Beat GED Math O...
Solving equations, Translating words into algebraic expressions: • GED Math Equations: So...
Strategy for comparing and ordering numbers:
-Group by digits. Fewer digits means a smaller number, and more digits means a bigger number
-For numbers with the same number of digits, compare each place value going left to right.
Rounding:
Step 1: Identify the place value you’re being asked about
Step 2: Look at the value to the right of it. If it’s a 5 or higher, increase the number in step 1 by 1 (round up). If it’s less than 5, keep the number from step 1 the same.
Step 3: Change all digits to the right of the number in step 1 to zeroes.
Strategy for Order of Operations aka PEMDAS is to remember the following:
P = Parenthesis (or other grouping symbols that enclose operations)
E = Exponents/Square Roots
M = Multiplication
D = Division
A = Addition
S = Subtraction
5-Step Strategy for GED Word Problems: F.I.O.S.:
-The F in fios stands for find - what do you have to find?
-The I in FIOS stands for info - what info do you need to solve the question
-O in FIOS stands for operation - which operation opperation do you need to use? Addition, subtraction, multiplication, or division?
-And that brings us to the S, which does double the work: the S stands for solve in sense: Solve the question and then ask if your answer makes sense.
Operations:
Subtraction: Compare numbers and find the difference
Multiplication: repeated addition. You use multiplication when you have to combine numbers more than once. You’ll usually be given one of something and will be asked to find more.
Division: To break a # into equal-sized groups
Keywords for addition:
Add
Sum
Altogether
Total
Increase
In all
Plus
Keywords for subtraction:
Less than
Decrease
Difference
Left
Lost
Quick tip for subtraction: The words "more" and "than" will be separated in some subtraction problems.
Keywords for multiplication:
Times
Total
As much
Of
By
Twice
Quick tip for multiplication: Total can suggest addition or multiplication.
Keywords for division:
Each
Quotient
Equal/equal pieces
Per
Keywords for equals:
-Is
-Are
Equations:
-An equation is a statement that two mathematical expressions are equal
-Equations may contain 1 or more variables
-A variable is a symbol we use to represent an unknown value. Could be x or y or a or b
-To solve an equation, you must get the variable by itself on one side of the equation (isolate the variable)
-You do this by doing the inverse (opposite) operation
-The inverse of addition is subtraction
-The inverse of subtraction is addition
-The inverse of multiplication is division
-The inverse of division is multiplication
KEY: Whatever you do to one side of the equation, you must also do on the other!
Common GED math mistakes:
1. Confusing a unit of measurement with a variable.
2. Thinking a letter always has the same value
Example: If you're told in one problem that x = 8, don't assume x always equals 8 throughout the whole test
3. Looking for a “secret code” for which number a letter represents
Example: Some people may think that since A is the first letter in the alphabet, that A = 1, etc. If you're stuck on a problem, it's probably because there's a concept you don't understand yet, not because of a "secret code" in the test.
4. Trying to add "unlike terms"
Please watch the video for the other mistakes I only mention in the video!
I referenced the following while researching these mistakes: www.floridaipdae.org/dfiles/resources/handouts/GED/Correctional_Institute_12-11-2014/Most_Missed_Math_Questions_Workbook.pdf
9 июл 2024
