Showing posts with label aicelle709. Show all posts
Showing posts with label aicelle709. Show all posts

Tuesday, May 31, 2011

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.

Sunday, January 23, 2011

Answer to Joshua's Question

Question: What is the probability of spinning a green on this spinner? Please express as a fraction, ratio and a percent.















Answer:
fraction- 2/8 or 1/4
ratio- 2:8 or 1:4
percent- 25%

A Probability Question

What is a probability of getting the blue marble ? Express your answer as a fraction, ratio and a percent.














Here is the link to practice your probability.

Sorry but i couldn't find a good video but i hope the link helped you to practice.

Good luck on the question.

Friday, November 5, 2010

How to do the "BEDMAS"

B - brackets ( )
E - exponents
D - division
⇵ in order from left to right
M - multiplication
A - addition
⇵ in order from left to right
S - subtraction

Eg. (64-34x2)+(22-3²)=
(64-64)+(22-3²)=
0+(22-3²)=
0+(22-9)=
0+13=
13=

3 questions
1.) 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.
No she is wrong, the write answer is 4.7. And this is how i got the answer.












2.) Put brackets in the following expression to get the largest value as possible. What problem solving strategy did you use? (3x2.8)+6.4÷4 or 3x2.8+(6.4÷4)
The strategy that i used is multiplication or division. This is how I did it.
Multiplication:













Division:












3.) Create a problem that could be solved using the following expression.
2.5+1.25+5x1.6
Problem: Cody saw a cupcakes and they cost $1.60 each, then he saw big cookies that cost $2.50, then he saw a cool pen that cost $1.25. He wants to buy 1 cookie, 1 pen, and 5 cupcakes, but he only has $10.00. Does he have enough money to buy the cupcakes, cookie, and the pen?
Answer: No he doesn't have enough money to buy the cupcakes, cookie, and the pen because the 5 cupcakes, 1 cookie, and 1 pen all together cost $11.75. Here's how i got my answer.














Here is the link to help you practice bedmas.

Here is a video to show how to do a "bedmas" if you don't understand the ones that i explained.



Hope you understand my explanation and i hope that you enjoyed it. Thanks for reading and watching.

Monday, October 18, 2010

Correction for number 21

Question :
Describe the type of transformation needed in each of the following
D.) Looking into a mirror
Answer :
Reflection
Definition :
A reflection is a type of symmetry where one half is the reflection of the other half.

This is an example of a reflection.




















This is a video of a reflection. ( i know this is long but this will help (: .)