Subtract Integers with Counters

What is the result of subtracting -7 - (-3)?

What is the result of subtracting -5 - (-4)?

What is the difference between 4 - (-2)?

What is the difference between 12 and 7?

(-87) - (-31) = 

• -56

• 56

• 111

• -111

What expression is represented by the counters?

• -12 + 5 = 7

• -12 - 5 = 5

• -12 + 5 = -7

• -12 + 5 = -5

(-2) - (-56) = 

• 54

• -54

• 58

• -58

#1 Hello World

• 7

• 5

• -7

• -5

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

What about when we subtract a negative number?

• -1

• 1

• 9

• -9