Adding/Subtracting Integers

Addition

100

What is 3+(−5)?

- 2

200

What is the sum of −7+4?  

- 3

300

Calculate −6+(−3).

- 9

400

What is 5+(−8)?

- 3

500

Solve −12+15.

3

Subtraction

100

What is 8 - 3?

5

200

Calculate [-5] - [6].

[-5]+[-6]=-11

300

What is the result of [10] - [-5]?

[10]+[5]=15

400

Find the difference between [-12] and [5].

[-12] - 5 = [-12]+[-5]=-17

500

What do you get when you subtract [-7] from [2]?

[2]-[-7] = 2 + 7 = 9

Rules for Adding/Subtracting

100

What does "keep, change, flip" mean in the context of subtraction?

keep the first integer, change to addition, flip the sign of the second integer

200

How do you determine the sign of the sum when adding two negative integers?

keep the sign of the addends (negative)

300

What is the rule for adding a positive and a negative integer?

subtract and keep the sign of the larger absolute value

400

 What is −5−(−3) using the keep, change, flip method?

-5 + 3 = -2

500

What happens when you subtract a negative number?

It becomes addition; the number increases.

Adding 3 or more

100

What is the sum of 3+(−2)+5?

6

200

Calculate the total for 4+6+(−1).

9

300

Find the result of −2+7+(−3)+4.

6

400

What is −1+2+3+(−5)?

-1

500

Solve for −6+1+2+3+(−4).

-4