Rules on Integer Operations

When adding two numbers, how can you tell if your answer will be positive or negative?

• The number that is bigger

• You can decide

• The number that has the bigger absolute value

• The number that is first

If you multiplied -1 by itself 42 times, the answer would be:

• 1

• -1

• 0

• 42

HINT: Make sure you follow Order of Operations!

• 28

• 2

• -10

• 0

Negative + Negative = ??

• Positive

• Negative

• It Depends

Match the following

• 12

• 1 - 2

• -3

• 1 - 4

• 2

• 5 + (-3)

• -1

• -4 + 5

• 1

• 2 - (-10)

6 - 16 =

• -10

• 10

• 22

• -22

When you subtract a negative number we add its ​ ​ (a)   .

• opposite

• inverse

Match the following with the correct operation and sign of the answer.

• subtract, positive

• -717 + 927

• add, negative

• -762 + (-481)

• add, positive

• 3 + 5

• subtract, negative

• -1239 + 904

The integers rules are the same for which 2 operations

• addition

• subtraction

• multiplication

• division

If I am subtracting integers, I need to change the problem to addition by ​ ​ (a)   ​ the ​ (b)   ​

• opposite

• subtracting

• same sign

• adding