What is the maximum number of 45-degree angles that a triangle can have?

Answer: 2

Susan has taken 4 of the 5 GED tests. Her scores were 410,440,500, and 480. In order to obtain the necessary 2250 points to get her GED, what would she need to get on her fifth test?

solution: Susan needs to get a 420 on her fifth test.

Which of the following is the equation of a line that contains the point with the corrdinates (1,4)?

a.2x - y = 1
b.2x - y-=-3
c.2x - y = -2

answer: (c) 2(1) - 4 = -2

Joel noticed that the price of gas is now $3.29. Two months ago it was $2.96 per gallon. What was the percent of increase?


Answer: 11.15%

Susan bought a sweater that cost $96.00. She paid a total of $101.75. What % did Susan pay in sales tax?

Answer: 6%

Solve for x.


3x + 6 -21 = 2x - 4

Solution: x = 10

Understanding how to arrange decimals is an important skill for the GED Math Student. Can you determine....

Which of the following decimals is the smallest?

4.0, 0.4. 4.4, -4.0, -0.4. -4.4

Answer: -4.4

Anna works in a clothing store and receives a 20% employee discount. If Anna decides to buy a $120 coat, what will her total cost be with 5.5% tax.

solution: In order to solve this problem you must first calculate Anna's 20% discount. Hint: Change the 20% into a decimal. Next, subtract the discount fromthe origional price, this gives you Anna's sale price. Calculate the sales tax, again by changing the percent into a decimal. Finally, add the sale price and sales tax together.


$120 x .2 = $24 (discount)
$120 - $24 = $96
$96 x .055 = $5.28
$96.00 + $5.28 = $101.28 (Anna's final cost)

Do you understand the number pattern for Pascual's Triangle? If you don't, you are not alone. Up until now, every time I saw it... I had to think about it. And then, I still may not have figured it out... or should I say remembered what the pattern was.

That is, up until now.

The pattern: Each number is just the two numbers above it, added together.

Can you figure out what the next row will be?

GED Math: The Associative Property of Addition, The commutative Property of Addition

How do you remember the difference between associative and commutative?

The Commutative Property of Addition: a + b = b + a
When you commute back and forth to work... you go between two places.


The Associative Property of Addition: a + (b + c) = (a + b) + c
When you associate with friends at a party , it is always at least three.

GED Skill: Adding and Subtracting Decimals

Adding and subtracting decimals is similar to adding and subtracting whole numbers. However, when you add or subtract decimals, it is important that you line up the decimal points. Once your numbers are lined up properly, you can add or subtract just like you would whole numbers.

Problem: Sally went to the store and purchased a can of soda for 75 cents and a bag of chips for $3.99. She gave the cashier a $10 bill. How much change will Sally get back?

Answer: $00.75 + $3.99 = $4.74
$10.00 - $4.74 = $5.26(change)