Unit 4 & 5 Need to Know

What are the rules for adding integers with different signs?

• Write S for same, and then add the numbers and keep the sign. 
• Write D for different; circle the number there is more of; subtract and keep the sign of the number you circled.

What are the steps for subtracting integers?

• Add a line, change the sign OR Keep, Change, Change; then follow addition rules.
• Subtract the numbers and keep the sign of the number there is more of.

Tags

CCSS.7.NS.A.1C

When multiplying or dividing integers with different signs your result will be ______________.

• Positive
• Negative
• Depends which number is bigger.

What is the value of 4³?

• 12
• 16
• 64

Which operation should be done first?
3² · 48 ÷ (15 - 3) = 

• 3 x 48
• 48 ÷ 15
• 15 - 3 
• 48 - 12

Which operation should be done second?
(4 - 2)³ · 9 + 7 =

• exponents
• subtraction
• addition
• multiplication

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which operation should be done last?
(12 + 10) ÷ 10 · 14 - 6

• Division
• Multiplication
• Addition
• Subtraction

What are the steps to solve the following expression?
50 − 16 ÷ 2 · (12 + 4)

• parentheses 
  multiplication
  subtraction
  division
• parentheses
  multiplication
  division
  subtraction
• parentheses
  division
  multiplication
  subtraction
• parentheses
  subtraction
  multiplication
  division

Find and explain the error.    
 15 - 23 + 12
     15 - 35 
        -20

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

Which list has the actual steps for order of operations in the correct order?

• Add and Subtract, Multiply and Divide
• Please excuse my dear Aunt Sally
• Parenthesis, Exponent, Multiply and Divide (left to right), Add and Subtract (left to right)
• Parenthesis, Exponent, Multiply, Add