Monday, December 14, 2009
b) 125/396 (thousandths)
c) 1496/2005 (hundredths)
A decimal number with digit or group of digits that repeats forever.
- repeating digits are shown with a bar.
eg. 0.777777.... = 0. Bar 7
Use calculator to convert these fractions to a repeating decimal.
0. bar 3
0. bar 5
0.8 bar 3
- a decimal number in which the digits stop.
-examples include 0.4, 0.86, 0.125
75/100 = 3/4
a) 28 out of 8 b) 421 out of 560
Change each terminating decimal to a fraction.
Simplify the expression
(2+1) 2+ 3x4 2 divided by 2
Construct an angle bisector of a 60 degrees angle.
Tuesday, December 8, 2009
8, 9, 10, 11, and 12
The difference between 13 and 7 is 6
Half this difference is 3
6 divided by 2 = 3
The number ID is halfway between 7 and 13
7 + 3 = 10 or 13 - 3 = 10
If you still don't understand this information try and solve these questions that we did during class.
1. What are the whole numbers between 68 and 72, 108.3 and 111.6
Answer : 69, 70, and 71 Answer : 109, 110, and 111
2. What number is halfway between the given numbers? a. 70 and 170 b. 1801 and 1813 c.18.4 and 6.2.
Answers : a.120 b.1807 c.12.3
3. Is the number in the middle closer to the left number or the right number?
30/38/40 0.6/3.4/6.6 0.891/0.732/0.641 78.68/78.22/77.77
Right Left Right Right
Monday, November 30, 2009
A three sided figure
Have three angles
or area= 45 meters squared
Here is some link to truelly understand how to finding the area of a triangle:
Wednesday, November 25, 2009
this square has an area of 4 square units
Area is the surface space a shape takes up.
Area of square or rectangle
Length x Width= area
L x W= area
area=L x W
Parallelogram - a four sided figure with opposite sides parallel and equal
Base(b) - a side of two-dimensional closed figure(shape)
Height(h) - the perpendicular distance from the base to the opposite side.
Base(b) is 5cm and height(h) is 3cm. Plug those value into the formula
A=b x h
A=5 x 3
Find the area of this parallelogram
Find the area of this parallelogram
A=b x h
A=12 x 4
Monday, November 23, 2009
Angles - space between 2 connecting lines
-equal angles are not mark with the same symbol
How to make an angle bisector
1. use compass make an arc from the vertex that crosses both arms label them X and Y.
2. make an arc from point X and Y they must be equal size.
3. draw a line from point B to the arc intersection.
1. use protractor measure the angle D,E,F .
2. divide your measurement by two.
3. make at 54 using protactor labelled Q
y) Join point Q with a straight line.
Wednesday, November 18, 2009
Bi- means two
Sect- means to cut
So bisect means to cut in two.
1. Draw a line
2. Fold so pt A is on top of pt B.
3. Use a ruler to draw a line in the crease made by the fold.
4. Label the point where the two lines segments intersect P.
5. Measure the lengths of AP and BP
What do you noticed?
7. Use a protractor to measure the 4 angles created.
What do you notice? they are all 90*
You have created a perpendicular bisector
- a line that divides another line segment in half and is at right angles to it.
-equal line segments are marked with " hash" marks.
use a right triangle
1. Find the length of the line segment.
2. Determine the half way point.
3. Use right triangle to create a perpendicular line.
3rd way to make a perpendicular bisector.
step one: make an arc from point A is greater then half way.
step two: make an equal sized arc intersections with a straight line, that line is a perpendicular bisector.
Draw a 12cm line segment label it PQ. Draw the perpendicular bisector of this line segment, all three was. Label the point where they intersect R.
a. what are the lengths of PR and PR?
b. what does it mean if the lengths are different?
Monday, November 16, 2009
Measure the distance from:
A to B = 8.9 cm
B to C = 8.9 cm
E to F = 8.9 cm
F to G = 8.9 cm
I to J = 8.9 cm
J to K = 8.9 cm
What do you notice about parallel lines?
Always are the same distance apart no matter where you measure as long as you measure using parallel lines.
Identify any parallel line segments
AE // BF
BF // CG
EI // FJ
FJ // GK
AI // CK
Identify any perpendicular line segment
AE to DF
BF to EG
CG to FH
IE to DF
1. Are line segments AC and DF parallel?
2. Are line segments DF and BE perpendicular?
3. Are line segments AC and BE perpendicular? How do you know?
4. Would a line segment joining A to D be parallel to a line segment BE? How do you know?
Friday, November 6, 2009
Lastly, we have a Term Test on Thursday it will cover the entire term's worth of work. Be sure to start studying now, do not wait until the last minute!
Thursday, November 5, 2009
Half of the number of the day is: 4248.6825.
Write the number of the day in expanded form: 8000+400+90+7+0.3+0.06+0.005=8497.365.
Write the number of the day in written form: eight thousand four hundred ninty-seven and three
hundred sixty-five thousandths.
Round the number of the day to 100: 8500.
What digit is in the tenths place: 3.
The number of the day doubled is:16994.730.
123.45 more than the number is: 8620.815.
987.65 less then the number is: 7509.715.
Cube the digit in the ones place: 7 times 7 times 7 = 343.
Square the digit in the hundreds place: 4 times 4 = 16.
Divide the number by 3.55 and round to the nearest hundredth: 2393.62.
The product of all the digits in the number of the day is: 8 times 4 times 9 times 7 times 0.3 times 0.06 times 0.005= .181440.
p.g 71-73 # 4 - 24 even only.
QUIZ ON TUESDAY AND TEST ON THURSDAY
so study, study, sudy!!!!!!!!
Wednesday, November 4, 2009
Today's number: 2691.348
3.two thousand six hundred ninety one and three hundred forty eight thousandths
If you have any problems, just ask!
LEAVE A COMMENT :)
Tuesday, November 3, 2009
We had to use BEDMAS to explain these equations
BEDMAS means :
G) Create a math equation including +,-,/,x, exponents, and brackets. The answer must be 6 and you can't repeat any digits or use zero.
Here is a video to help you with BEDMAS and a link to help you understand BEDMAS:
Monday, November 2, 2009
There are four operations
3rd:division or multiply in order form left to right
4th: addition or subtraction in order form left to right
Annie has been asked to calculate.1.7+6+2=. She claims the answer is 3.85. Do you agree?Explain why or why not.
Tuesday, October 27, 2009
20÷4=0.5 1/2 L over
1.0÷4=0.25 1/4 L under
4 divide by 1.36=0.34
3 divide by 879=293
Monday, October 26, 2009
Quotient- anwer to a division question.
You have $6.00. You need pens for a scrapebooking. Fancy glitter pens cost $0.40 each. How many glitter pens can you buy with $6.00?
Answer: You can buy 15 glitter pens with $6.00.
Place the decimal where it belongs on the following questions.
15.4 ÷ 3.6= 4277778
You can over or underestimate to figure out the answer. Find a way that works for you.
Place the decimal in the correct spot.
20.1 ÷ 4.7= 42766
You may want to go to these websites if you want to learn more about dividing decimals and other math stuff.
Here are some videos to help you with dividing with decimals and remember decimals are related to fractions and percentages.
I hoped you enjoyed my scribe and remember to leave a comment!!
Wednesday, October 21, 2009
You probaly know that 5000+5000=10000 and 400+600=1000 add them together and it makes 11000.75+63 will take a little longer so you just have to estimate estimateing is somewhere around the number so lets just say it makes 125 this will help you with bigger numbers or multiplication questions.
Remember estimateing is NOT exact!!!
Below is a video of how to estimateb please enjoy
Today we learned about estimateing if you are a member of www.mytextbook.com go on chapter 2page 57-59 to review it.
When you estimate everything will be easy so estimate but remember it's not exact.
Friday, October 16, 2009
To change font color, highlight the text and click the T with the colours on it.
To change the font size, highlight text and click the double T.
To add videos:
First you need to have a link you want to post.
TO POST AN IMAGE...
1) Find a picture
2) Copy link