## Monday, December 14, 2009

Convert each fraction into a decimal number.

Round each decimal number to the indicated place

value. Then convert to a percent.

a) 27/56 (tenths) b) 125/396 (thousandths) c) 1496/2005 (hundredths)

---------- ---------- ------------ <-(divided by)

56 = 396 = 2005=

0.4821428 x100 0.3156565 x100 0.746134663 x100

0.5/50% 0.316/31.6% 0.75/75%

Repeating Decimals

-a decimal number with a digit or group of digits that repeat forever.

-repeating digits are shown with a bar

_

eg. 0.777777...=0.7

Use calculator to convert these fractions into a repeating decimal.

a) 1/3 b)5/9 c)5/6

0.33333/0.30. 55555556/0.50. 833333333/0.83

E) 0.666666... F) 0.777777...0.6 0.7

Terminating Decimals

- a decimal number in which the digits stop

-examples include 0.4,0.86,0.125

0.75 seventy five hundreds
75/100 = 3/4
0.652 six hundred fifty two thousandths
652/1000

Change each terminating decimal number into a fraction.
a) 0.48 b) 0.078

Simplify the expression
(2=1) 2 exponent 2+3x4-2 divided by 2

Q: Construct an angle bisector of a 60 degree angle
A: The angle bisector is at 60 degrees

Here is a video on converting fractions

ENJOY!

## Friday, December 11, 2009

### Ascending and Descending

Ascending order means from least to greatest.
Descending order means from greatest to least.

Converting Fractions decimals percents these are 3 ways to say the same things.
Eg.
1. I got 50% on the test
2. I got 1/2 of the que
stions correct
3. I got 0.5 marks for each question

They are all in fractions percents x
/100 decimal x/1 fraction x/any

Convert 75%

75 ÷5 15 3 75÷100= 0.75
100 ÷5=20= 4 100÷100

Convert 5/8 to a decimal and percent

5÷8 0.625 x100 62.5
8÷8= 1 x100 = 100
62.5%

Notice
2÷5 0.40
5÷5= 1

## Monday, December 7, 2009

### How to Find the Halfway Point

The whole numbers that are between 7 and 13 are: 8, 9, 10, 11 and, 12.

The difference between 13 and 7 is 6.

Half the difference is 3. 6 divided by 2=3

The number 10 is halfway between 7 and 13.

To find this out you can either add half the difference to the smaller number or subtract half the difference from the larger number.

The second way is to use a number line.

The third way is to add both of the numbers together and divide the sum by two. 13+7=20 20 divided by 2=10

1.) a. What are the whole numbers between 68 and 72? They are 69, 70, 71.
b. What are the whole numbers between 108.3 and 111.6? They are 109, 110, 111.

2.) a. What is the halfway point between 70 and 170? It is 120.
b. What is the halfway point between 1801 and 1813? It is 1807.
c. What is the halfway point between 18.4 and 6.2? It is 12.3