Add/Sub Integers (w/ step by step examples)

Is the following problem showing addition or subtraction?

2 + (-4)

• addition

• subtraction

This problem shows addition.

Are the signs the same or different?

2 + (-4)

• same

• different

The signs are different.

Does this mean to add or subtract?

2 + (-4)

• add

• subtract

Different signs mean to subtract.

Ignoring the signs, what do you get when you subtract 4 and 2?

2 + (-4)

4 - 2 = 2

Now look at the signs, we have 2 positives and 4 negatives so what sign do we make the final answer

2 + (-4) = ?2

• positive because there are more positives

• positive because they are the same signs

• negative because we have more negatives

• negative because they have different signs

Is the following problem showing addition or subtraction?

-2 - 4

• addition

• subtraction

The problem shows subtraction. We do NOT like subtraction, so what want to change it to addition.

Which expression shows the proper way to change to addition?

-2 - 4

• -2 + 4

• -2 + (-4)

• 2 + 4

• 2 + (-4)

The proper way to change to addition is to ADD the OPPOSITE!

-2 - 4

-2 + (-4)

Are the signs the same or different?

• same

• different

The signs are the same, does that mean add or subtract?

-2 - 4

-2 + (-4)

• add

• subtract

Same signs means to add. Ignoring the signs, what do you get when you add 2 and 4?

-2 - 4

-2 + (-4)