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.6.EE.A.3

CCSS.6.EE.A.4

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.6.NS.C.5

What about when we subtract a negative number?

-5 - (-4)

• -1

• 1

• 9

• -9

What is the answer to -2 - 8?

• -10
• 10
• 6
• -6

7 - (-11) + 3

• -1

• -7

• 15

• 21

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

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.6.NS.C.5

CCSS.6.NS.C.6

CCSS.6.NS.C.8

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

• right
• left

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

• opposite
• same

Use the counters to find the sum of the integers. 

• 17
• -2
• -1
• -17

Tags

CCSS.7.NS.A.1C