PEMDAS
Show your upside down Christmas Tree
(2+3)-4=
5 - 4
1
Divide the integers
10 ÷ (-5)
-2
9 x (-5)
-45
What are the steps of PEMDAS?
Parenthesis, Exponents, Multiply or Divide, Add or Subtract
Nick has 3 bags of chips, each bag has 5 chips. He then eats 3 chips. How many chips does he have left? Draw a Picture.
o o o o o
o o o o o
o o ø ø ø
3 x 5 - 3 = 12
Show your upside down Christmas Tree
(4 x 2) + 33 x 2 =
8 + 33 x 2
8 + 27 x 2
8 + 54
62
-6 ÷ (-3)
2
-10 x 4
-40
Whats the 1st rule of multiplying integers?
If the signs are the same, the answer will be positive.
Mr. Webbs classroom has 6 tables with 3 chairs each. He has 5 students sit in the chairs. How many empty chairs are there? Draw a picture.
o o o o o o
o o o o o o
o ø ø ø ø ø
6 x 3 - 5 = 19
Show your upside down Christmas Tree
32 - 5 + 2 =
9 - 5 + 2
4 + 2
6
-30 ÷ 15
-2
6 x (-4)
-24
Whats the 2nd rule of multiplying integers?
If the signs are the same, the answer will be positive.
If the signs are different, the answer will be negative.
I have 2 shelves with 10 movies each. My friend then gives me 4 more movies. How many movies do I have now? Draw a picture.
o o o o o o o o o o
o o o o o o o o o o
o o o o
2 x 10 + 4 = 24
Show your upside down Christmas Tree
(-4)2 ÷ 4 x 2
16 ÷ 4 x 2
4 x 2
8
-32 ÷ 8
-4
-342 x 0
0
Whats the 1st rule of dividing integers?
If the signs are the same, the answer will be positive.
Cambry has 8 cookies and 4 friends, she gives each friend an even amount of cookies. How many cookies does each friend get? Draw a Picture.
Check pictures
8 ÷ 4 = 2
Show your upside down Christmas Tree
20 - 4 x 10 + (3+2)
20 - 4 x 10 + 5
20 - 40 + 5
-20 + 5
-15
-208 ÷ (-4)
52
Write your own multiplying integers problem.
Whats the 2nd rule of dividing integers?
If the signs are different, the answer will be negative.
If a problem asks "What is the total change?" what kind of problem is it?
Multiplication