816 Math Blog

Our first question is 2/3 multiplied by 9/10. First what we do is to multiply the numerators which is 2 and 9. So 2 x 9 equals to 18.

Now all that is left to do is to multiply the denominators. So 3 multiplied by 10 equals to 30.


Now the fraction we have is 18/30. So we simplify it and we get 3/5.


So our answer is 3/5 .

Question 2


Now we move on to dividing fractions. Our first Question is 1/4 divided by 3/4. When dividing fractions it always helps when using a ratio table.


Now we have to make it into a mixed fraction. First we have to figure out how many times does 4 go into 12 ? 3 , so 3 becomes the whole number. Since 4 goes into 12 perfectly and there are no left over 3 also becomes our numerator and the denominator stays the same.

Adding and Subtracting Fractions

Question 1

First what we do is look at the Denominators. Then we look at what the two Denominators both go into, then we multiply. 2 multiplied by 7 would give us the total of 14.

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Now that we multiplied both our numerators. All that is left to do is add both second fractions that we got which was 7 over 14 and 4 over 14.

So all we did for the last step was add the numerators and kept the denominators the same, which gave us the total fraction of 11 over 14.

Question 2

First we look at the Denominators, then we figure out what they both go into so 3 times 10 equals 30. Now we make a set of fractions that could go into 30. Now we divide. We divide 3 into 30 and also divide how many times 10 goes into 30.

The last thing we do now is to take away from the numerator which is 10 and 9. So 10 take away 9 equals to one. Then we keep the denominators the same and we have a fraction of 1 over 30.

Word Problems

Question 2

Question 3

Who is Pythagoras ?

Phytagoras is a Greek mathematmatician and was also a teacher and a philosopher, He also calculated the earth's circumference and discovered that it was a sphere not a flat. He was known for the Pythagorean theorem ( a2 + b2 = c2 ) , known as the " father of numbers " and was also a vegetarian. Pythagoras was one of the most important people in the world. Although they don't have evidence that Pythagoras excisted he was still an important person in the world.

For this project there was allot of things i wanted to do for example i wanted to volunteer at a children's hospital , bake and give it to the homeless , donate toys to charities , help at a soup kitchen and etc . But though i didn't get to do them. But instead i did three things that i know i can do in just a day or two , For my act of kindness what i did was babysat for free , shoveled someones driveway and gave out cards to share Christmas spirit and the joy of the new year. I did my act of kindness with my friends Christian and Jessalynne , we all participated by drawing the cards , coloring them , taking turns taking care of the babies , and we both shoveled the driveway together. We both had fun knowing that we were helping someone or if not at least putting a smile on there faces . I just hope that the people we helped would do us a favor and pay it forward .


Gabby

Today in class we talked more about dividing integers. We finished our barn doors and Mr. Harbeck reviewed what we needed to have on our barn doors, to get a full marks. We needed to have at least two examples for each door and we needed to have the rule's. We also talked about yesterday's homework. Yesterday's homework was page 7 numbers 10 - 17 , we checked numbers 13 , 16 and 17 .





Today's homework is page 7 numbers 19 and 23 , and page 8 numbers 1 to 18 .


page 7 ,





page 8 ,






This is some of the homework , and if i did anything wrong feel free to leave a comment . And tommorow we will also have a quiz on what we've been doing so far. I guess this is the time for me to pick the next scribe , the next scribe is KATRINA (:

Today in class we talked about integers. And Mr. Harbeck also talked about how we should ask more questions in class. And he also wanted us to be curious about things, like when were in kindergarten. He also talked about how the second and third part of story will be due soon. And after we did two questions on the smart board. And the questions were :


( +2 ) - ( +6 ) + ( -2 ) = (?)
( +2 ) - ( -6 ) + ( -2 ) = -6

( -2 ) - ( +5 ) + ( -4 ) = (?)
( -2 ) + ( -5 ) + ( -4 ) = - 11

Then we started to do our homework which was pages 48 and 49. For page 48 we had to do numbers : 21, 22, 23 , 27, 29, 37, 38, 40. For page 49 we had to do numbers : 9, 10, 11, 14, 15, 25, 26. These are some of the questions :

page 48 ,

27. ( +5 ) - ( +3 ) - (+2 ) - ( -7 ) = (?)
( +5 ) + ( -3 ) + ( -2 ) + (+7 ) = +7

29. ( +15 ) + ( -13 ) - ( +2 ) - ( +7 ) = (?)
( +15 ) + ( -13 ) + ( -2 ) + ( -7 ) = -7

40. ( +2 ) + ( -6 ) - ( +8 ) + ( +5 ) = (?)
( +2 ) + ( -6 ) + ( -8 ) + ( +5 ) = -7

page 49.

14. ( +8 ) - ( -5 ) + ( -9 ) = (?)
( +8 ) + ( +5 ) + ( -9 ) = +4

25. ( +16 ) + ( -9 ) + ( -3 ) - ( -5 ) = (?)
( +16 ) + ( -9 ) + ( -3 ) + ( +5 ) = +9

26. ( +18 ) - ( -5 ) + ( +3 ) = (?)
( +18 ) + ( +5 ) + ( +3 ) = +26

The Game

day there was a boy named Gabby , he was playing his video games until something came up on the screen and it said " you have to solve this four problems before you can play your game. Get them all right , you get a special version of Rock Band. Then it showed , ( + 5 ) + ( - 3 ) = ? " Hm, Gabby solved it right away he said that the answer is :



Then after he solved it it said " Good job , you have figured out the first one. Now you have to figure out three more and then you can play the special new game. " He went outside and he found the second problem on the ground and it said " Your getting closer , now you next problem is ( + 9 ) + ( - 6 ) = ? ". Gabby thought that this was a little hard so he used algebra tiles. Then he got it. He has the answer. And the answer is :



Gabby started to play basketball. He threw the ball so hard it went over the neighbors fence, while he went around to get his ball he found the third problem and it said : " Your doing great, one more problem and you can finally play the new version of Rock Band. And you problem is ( - 9 ) + ( + 9 ) = ? ".





Gabby finished his third problem , now all there is left to do is wait for the last problem. After a long wait , it finally showed up . And it said " This is your last problem and it will be a hard one. If you get this right then you can play Rock Band. Here is your last problem ( + 10 ) + ( + 9 ) = ? good luck ".





Gabby walked back in, and checked is he could play the game now. He walks in the living room and sees Rock Band on the floor and on it had a message that says : " Now you know your integers, Have fun playing Rock Band. "

MEAN

• Arrange your data in ascending order.

• Sum of all numbers divided by the number of digits in your data and that is your mean.

MEDIAN

• Arrange your data in ascending order.
• look for the number in the middle and that your median.

MODE

• arrange your data in ascending order.
• the number that shows up the most is your mode.
  
  

RANGE

• arrange your set of date in ascending order.
• subtract the largest number and the smallest number together to get the range.

Here is the mmm video.