Changing Addition and Subtraction Equations

Which are the correct steps for rewriting a subtraction problem into addition?

• 1) Keep first number the same
  2) Keep Subtraction sign
  3) Change second number to opposite
• 1) Keep first number the same
  2) Change Subtraction into Addition
  3) Change second number to opposite
• 1) Change the first number into the opposite
  2) Change Subtraction to Addition
  3) Keep second number the same
• 1) Change the first number into the opposite
  2) Change Subtraction to Addition
  3) Change second number to opposite

Tags

CCSS.7.NS.A.1C

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
−8 − 5

• 8 + 5
• 8 + (−5)
• −8 + 5
• −8 + (−5)

Tags

CCSS.7.NS.A.1B

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
7 − 12

• 7 + 12
• 7 + (−12)
• −7 + 12
• −7 + (−12)

Tags

CCSS.7.NS.A.1C

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
−8 − 8

• −8 + (−8)
• −8 + 8
• 8 + (−8)
• 8 + 8

Tags

CCSS.7.NS.A.1B

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
10 − (−3)

• −10 + (−3)
• 10 + (−3)
• −10 + 3
• 10 + 3

Tags

CCSS.7.NS.A.1C

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
6 − 2

• −6 + 2
• −6 + (−2)
• 6 + (−2)
• 6 + 2

Tags

CCSS.7.NS.A.1B

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
−8 − (−4)

• −8 − 4
• −8 + 4
• 8 + (−4)
• −8 + (−4)

Tags

CCSS.7.NS.A.1B

Which of the answers show the subtraction problem correctly rewritten as an addition problem?
−5 − (−9)

• −5 + 9
• −5 + (−9)
• 5 + (−9)
• 5 + 9

Tags

CCSS.7.NS.A.1B

Who rewrote their subtraction problem correctly as an addition problem?

• Shannon
  7 − (−3)
  7 + (−3)
• Peter
  −5 − 4
  − 5 + 4
• Aaliyah
  −6 − (−1)
  −6 + (−1)
• Tyrone
  −2 − 8
  −2 + (−8)

Tags

CCSS.7.NS.A.1D

-8 - (-4) Changes to what question?

• 8 + 4

• -8 + 4

• -8 - 4

• • -8 + (-4)

Tags

CCSS.7.NS.A.1C