Subtracting Integers with Strategies

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

What can be added to these counters to make zero?

• One red counter

• Two yellow counters

• Two yellow counters and one red counter

• Two red counters

Tags

CCSS.2.OA.A.1

What about when we subtract a negative number?

-5 - (-4)

• -1

• 1

• 9

• -9

Tags

CCSS.7.NS.A.1C

What is the answer to -2 - 8?

• -10
• 10
• 6
• -6

Tags

CCSS.7.NS.A.1C

7 - (-11) + 3

• -1

• -7

• 15

• 21

Tags

CCSS.7.NS.A.1C

Match the integer addition problem with the graph.

• 4 + (-5) = -1
• -5 + 4 = -1
• 4 + (-5) = 0
• None of these

Tags

CCSS.7.NS.A.1B

Match the integer addition problem with the graph.

• -5 + (-2) = -7
• -5 - (-2) = -7
• -7 + (-2) = -5
• None of these. 

Tags

CCSS.7.NS.A.1B

A subtraction sign means I will move ________on the number line.

• right
• left

Tags

CCSS.7.NS.A.1C

A negative sign means I will move the __________ direction on the number line.

• opposite
• same

Tags

CCSS.7.NS.A.1B

Use the counters to find the sum of the integers. 

• 17
• -2
• -1
• -17

Tags

CCSS.7.NS.A.1C