Big book of integers chapeter

(+2)x(+3)= +6 (+2)x(-3= -6 (-2)x(+3)= +6 (-2)x(-3= +6

Ryan's Term 2 Reflection

I enjoyed the second term, because most of the units we did was very simple and easy for me. Although I didn’t do that well in quizzes/tests, volume and surface area was fun. It was easier for me to solve these kind of problems, because all I had to do was follow the formulas. These types of problems, were like an incomplete puzzle, where you knew what to do to complete them, and you would have to find each value of the formula, to subsitute them in. However, percents were a bit confusing for me. Other than the hundred grids, I did well. My only trouble with the hundred grids, were that if you needed to represent a number such as 0.06 percent, would you have to draw a “zoomed” version of a square, which was out of 100 squares? This confused me because there seemed like a much more simple way to represent that, without finding an equivalent fraction. Overall, I enjoyed the units we did this term, more than the units we did last term.

Filimon's Volume Post

Pg 263 #5 v=h x pi x r2

r=4.1 11=h pi=3.14

r2 r x r = 16.81

Volume of this cylinder is 51.35.

#4 Pg 265

r2=10

h=23

pi=3.14

v=722.2

Arween's Great Big Book Of Integers

Chapter 1 : Grade 7 Integer Review

“When subtracting something that isn’t there use a zero pair”

Examples:-3 - (-7)=

-3 - 7 =

3 - 7 =

3 + 7 =

-3 + 7 =

Chapter 2 : Multiplying Integers
Sign rule: when you are multiplying integers and you have 0 or even numbers of negatives, the answer is positive. When you are multiplying integers and you have odd numbers of negatives, the answer is negative.

Examples:
(+2) x (+3)=

(+2) x (-3)=

(-2) x (+3)=

(-2) x (-3)=

Chapter 3 : Dividing Integers

Partitive Division is how many groups are there in a number.

6 ÷ 2 =

Quotative division is how to share a number into groups
6 ÷ 2 =

Sign rule:
Even: when numbers of negative integers are even the answer is positive

Odd: when numbers of negative integers are odd the answers is negative

6 ÷ 2 = 3 There are no negative integers so that means the quotient is positive.
-6 ÷ (-2) = 3 There are two (even) negative integers that means the quotient is positive.
(-6) ÷ 2 = -3 There is a negative integer (odd) that means the quotient is negative.
6÷(-2) = -3 There’s one negative integer that means the quotient is negative.

Chapter 4 : Order of Operations with Integers

(+5) x (-3) + (-6) ÷ (+3)
-15 + (-6) ÷ (+3)
-15 + -2
-17
When answering Order of Operations remember B.E.M.D.A.S
B = Brackets
E = Exponent
M = Multiplication
D = Division
A = Addition
S = Subtraction
1. First answer numbers with brackets Ex. ( ) or [ ]
2. Then Answer Multiplication and Division
3. Then Addition and Subtraction

Roemer's Term 2 Reflection

This term we learned about percents. I found percents easy because I fund it easy and I think I will do good on the final exam. Also, we learned about Surface Area and Volume. Surface area and volume are our almost exactly alike. Only difference is on surface area, you want to find thetotal area of the shape, but in volume, you only have to find the "inside" area.I found this struggling in the beginning, but not anymore. With a little practise, I got much better. Math is usually one of my strongest subjects, but this term, I think I only got average. Next term, I will work 110% harder by completing homework, and getting better score test.

Ishaka's Term 2 Reflection

This term we learned about surface area and volume. I think I did all right this term because when we were learning about surface area it was kind of hard but when we started to learn volume It was easy. I had great test scores It was probably because I started to pay attention in class. Learning volume was so easy that I didn’t struggle doing any of the work we did in class. Next term my goal is to do more work, and pay attention in class.