B.E.D.M.A.S

B - brackets
E - exponents
D - Division
M - multiplication
A - addition
S - subtraction

Solve this problem:

(34.67+23.65) x 5.6 -:- 11.2 =




check:

(34.67 + 23.65) x 5.6 -:- 11.2=
                58.34 x 5.6 -:- 11.2=
                    326.704 -:- 11.2=
                                     29.17=

Math Exam Review(BEDMAS)

BEDMAS

B= Brackets
E= Exponents
D= Division
M= Multiplication
A= Addition
S= Subtraction

Here is a video that can help you:

Math Exam Review (Last Page)

Here are some questions you can answer...

Here are the answers...

Sorry the answers to the questions was small.

Here is a link to help you review for the math exam. Good luck ! (:

Here is a video, I hope it helps !

notes, june 1/2 2011

2j x 3= 36

Variable-(j is the variable)  a letter that represent a unknown number.

Expression-(2j x 3) any single number or variable or a combination of operations.

Constant-(3 is the constant) a number that does not change, increases or decreases, the value of an expression.

Numerical coefficient-(2 is the numerical coefficient) a number that multiply a variable.


Equation- mathematical statement with two expression that have the same value. (a scale)

eg. x+3=3 , y-7=(4) , 3a-2=a+2 , b=4






Identify the value of variable.

 Isolate the variable:

Use opposite operation:

Add - Subtract
Subtract - Add
Multiply - Divide
Divide - Multiply


Remember, when did something on the left side you have to do the same thing in the right side.
 

 

Remember to always check your answer.

HOW TO ISOLATE A VARIABLE

Here's a link to learn more about isolating the variable.

Notes

Integers - positive and negative whole numbers including zero.

ex. 1, 200000, 80, 400, 3000, -6, -50, -900, 100000.

Integers are NOT decimals, fractions, percent, and ratio.

Zero pairs - a pair of integers representing +1 and -1

ex. (+2) + (-2) = 0 (+13) + (-13) = 0

Predict the sum of any pair of opposite integers.

Opposite Integers - are two integers with the same numeral, but different signs.

ex. +1 and -1 or +123 and -123

Here is a link of a game that you can play and practice.

Here is a link of a video if you don't understand my explanation.

Variables and Expression

Variables - a letter that represents an unknown number

Expression - any single # or variable or a combination of operations involving numbers and variables

Value - a known or calculated amount

Constant - a number that doesn't change, increases or decreases the value of an expression

For example ( the picture ):

Here is a video to help you with your understanding.

Notes for May 19,2011

Variable and Expressions

Variable- a letter that represents an unknown number.
For example: a, x, w

Expression- any single number or variable or a combination of operations (+, -, x, /) involving numbers and variables.
For example: 5, r, 8t, x+9, 2y-7

Value- a known or calculated amount.

Constant- a number that does not change
- increases or decreases the value of an expression

Numerical coefficient- a number that multiplies a variable.
For example:
Here is a LINK for practice.
Here is a VIDEO about variable and expressions.

Number of the Day (8-14)

The number of the day is 4582.197

8) Question: Write the power using the digit in the 100th place as the base and the digit in the 10s place as the exponent.

Answer: 98

9) Question: Write the above power in factored form.

Answer: 9x9x9x9x9x9x9x9x9=387420489 Remember: 98 Does NOT mean 9x8

10)Question: Cube the digit in the ones place.

Answer:To cube a digit you have to multiply LxHxW= N³ (number)

4582.197- 2x2x2=8³

11) Question: Square the digit in the hundreds place.

Answer: To square a digit you must multiply LxH= N² (number)

4582.197- 5x5= 25²

12) Question: Divide the number of the day by 3.55 and round to the nearest hundredth.

Answer: 1290.7597 You must raise the nine by one, because 7 is "5 and higher", which means you must make the nine a zero and add 1 to the 5. You will end up with the answer as 1290.760 or 1290.76

Remember: Here is a poem about rounding numbers; Find the number in its spot.

Go next door and see what you've got. 5 or more raise the score, 4 or less let it rest.

13) Question: The product of all the digit is.

Answer: 4x5x8x2x1x9x7= 20160

14) Question: List all the prime numbers in the number of the day.

Answer: 5,2,1, and 7

Remember: A Prime Number can only be divided by 1 and itself.

Here's a link to help you with squaring numbers. Hope it helps (:

Sorry I couldn't find a video and the colors wouldn't work.

REMEMBER to do pages 102- 103 in your math homework booklet.

Notes For May 2, 2011

Integers
- positive and negative whole numbers including zero
eg. 1, 7, 63, 23783457, -9, -985, -56422147, 0

Integers are not decimals, fractions, percent, ratio
eg. 65%, 7.6, 1:2, 3/4 are not integers

Zero pair
- a pair of integers representing +1 and -1
eg. + - this pair represents zero pair because (+1) + (-1)= 0

Examples of zero pair
(+2) + (-2)=0

(+3) + (-3)=0

Predict the sum of any pair of opposite integers.
Opposite integers are two integers with the same numeral, but different signs.
eg. +2 and -2 or +123 and -123

What if the negative comes first.
(-8) + (+8)= 0
It's still going to be zero.





Here is some problems for practice..

(+5) + (-1)=


(+15263) + (-15263)=



(-6) + (+8)=


Here is a link for you to practice adding integers

Here is a video about integers.

Notes for April 12, 2011

Interpret Circle graphs
-circle graph is a graph that represents data using sections of a circle

Sector
- sounds like section
- a section of a circle formed by two radii and the arc of a circle connecting the radii

A sector is a percent of the whole

Creating circle graphs

Central angle
- an angle formed by two radii of a circle
- the vertex of the angle is at the center of the circle

How many degrees in a circle
-360 degrees
- 2 protractors

Here is a link about circle graph

Notes for April 4, 2011

Circle

Parts of the circle
Radius- the distance from the center of a circle to the edge, represented by the variable r
Diameter- the distance across a circle through its center, represented by d

Relationship between radius and diameter
-diameter is twice longer than radius
- radius is half of diameter

Constructing circles
1. compass
2. trace a circle
3. string

Concentric circles
-same center point different radius

Circumference
- the distance around the circle
- usually represented by c
- this is a linear measurement

pi
- the ratio of the circle of a circle to its diameter
- approximate 3.14

Here is a link about circles

Answer to Ian's Question

Whats its the probability of the spinner turning on Yellow?
Explain in Fraction, Ratio and Percent.

Answer:

fraction - 1\4

ratio - 1:4

percent - 25 %

Answer to Joshua's Question

What is the probability of spinning a GREEN on this spinner?

Please express as a Fraction, Ratio and Percent.

Answer:

fraction - 2\8 or 1\4

ratio - 2:8 or 1:4

percent - 25 %

Answer to Janessa's Probability Question

Question: What is the p(red) marble? Express your answer as Fraction, Ratio and Percent.

Answer(s)

Fraction: 1/6

Ratio: 1:6

Percent: 16.66%

Answer to Norien's Probability Question

Question: What is the probability of spinning a BLUE? Express your answer as Fraction, Ratio and Percent.

Answer(s)

Fraction: 3/12 or 1/4

Ratio: 3:12 or 1:4

Percent: 25%

Answer to Joshua's Probability Question

Question: What is the probability of spinning green on this spinner? Express your answer as Fraction, Ratio and Percent.

Answer(s)

Fraction: 2/8 or 1/4

Ratio: 2:8 or 1:4

Percent: 25%

Answer to Mary's Question

Question: What is the probability on spinning p(yellow) on my spinner? Express as Fraction, Ratio and Percent.

Answer(s)

Fraction: 2/8 or 1/4

Ratio: 2:8 or 1:4

Percent: 25%

Answer to Charry's Probability Question

Question: What is the probability of spinning GREEN. Express as Fraction, Ratio and Percent.

Answer(s)

Fraction: 4/8 or 1/2

Ratio: 4:8 or 1:2

Percent: 50%

Probability Question

What is the p( green or gold) stars? Express as Fraction, Ratio and Percent.

Answering Mary's Question

What is the probability on spinning

p(YELLOW) on my spinner?Express

your answer in a fraction, percent, and ratio.

Answer:

fraction - 2\6

ratio - 2:6

percent - 25 %