Wednesday, August 25, 2010

Sally wants to bake cookies and the recipe calls for 2 1/2 cups of flour. She looks in her pantry and finds that she only has 1 1/4 cup. How much flour does Sally still need?

a. 2 1/2 + 1 1/4
b. 2 1/2 - 1 1/4
c. 2 1/2 x 1 1/4
d. 1 1/4 - 2 1/2

answer: b

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Monday, August 16, 2010

Susan is planning on attending college. The tuition including room and board is $15, 423.00 for the school year. If she receives $9, 420.00 in assistance, how much does she still need to pay? What percentage of the total cost will she need to pay?

Solution: This problem is asking for two answers. To answer the first question, you need to take the total tuition and subtract the assistance. $15, 423.00 - $9420.00 = $6003.00

Susan will need to pay $6003.00.

To answer the second question (what percentage of the total tuition will Susan pay), you need to translate it into a question, then solve.

$6003.00 is what percentage of $15, 423.00?

$6003.00 = Wp x $15, 423.00

$6003.00 ÷ $15, 423.00 = 0.3892 which is 38.92%

Susan will need to come up with almost 40% of the cost of tuition.

Wednesday, August 04, 2010

GED Math: Basic Math Facts

The arithmetic facts (addition, subtraction, multiplication, division) are the building blocks of math. Knowing your basic facts well..... creates the foundation needed to succeed in learning GED Math.

Free math flashcard download.


**The answer to an addition problem is the SUM.

**The answer to a multiplication problem is called the PRODUCT.

Learn the fact families of addition and subtraction together.

3 + 4 = 7
4 + 3 = 7

7 - 3 = 4
7 - 4 = 3

Learn the fact families of multiplication and division together.

4 x 5 = 20
5 x 4 = 20

20 ÷ 5 = 4
20 ÷ 4 = 5