Subtracting Integers Review

Modeling Integers

100

Model 10 - 8

2 

200

Model -24 - (-15)

-9

300

Model -3 - (-8)

5

400

Model 6 - 11

-5

500

Model -9 - 3

-12

Integers On a Number Line

100

Model 12 - 4

8

200

Model -12 - 15

-27

300

Model -15 - (-7)

-8

400

Model 10 - 13

-3

500

Model 5 - (-10)

15

Subtracting Integers

100

-54 - 18

-72

200

-78 - (-37)

-41

300

56 - (-34)

90

400

-45 - 31

-76

500

18 - (-41)

59

Integer Word Problems

100

You take 6 steps forward and 8 steps backward. How many steps have you taken?

6 - 8 = -2 steps

200

The Temperature in Alaska is negative 6 degrees today. The weather station has reported that the temperature will drop by 15 degrees overnight. What will the new temperature be?

-6 - 15 = -21 degrees 

300

Water freezes at 32 degrees Fahrenheit. The melting point of oxygen is negative 173 degrees Fahrenheit. What is the difference between these two temperatures?

32 - 173 = -141 degrees Fahrenheit

400

Tom has $2,500 in his bank account. He withdraws $3,000 and then deposited $1,200. How much money is in Tom's bank account?

2500 - 3000 + 1200 = $700

500

A submarine starts out at 135 feet below sea level. It dives 239 feet before rising 307 feet. What is the current depth of the submarine?

-135 - 239 + 307 = -67 feet

Subtracting 3 or more Integers

100

-2 - 5 - (-3)

-4 

200

5 - 3 - (-6)

8 

300

-10 - (-10) - 4 

-4

400

-20 - (-2) - (-8) - 4

-14

500

6 - (-7) - 8 - 5 - (-17)

17