Addition and Subtraction of Integers

Absolute Value

Distance from zero on the number line.

Adding Integers

Combine numbers with same or different signs.

Subtracting Integers

Change subtraction to addition of the opposite.

Same Signs Rule

Add values and keep the sign.

Different Signs Rule

Subtract smaller absolute value from larger.

Keep - Change - Change

Method for subtracting integers effectively.

Example of Addition

36 + 22 = 58 (same signs).

Example of Negative Addition

(-12) + (-16) = -28 (same signs).

Example of Mixed Signs

-25 + 49 = 24 (different signs).

Example of Larger Absolute Value

68 + (-80) = -12 (different signs).

Football Game Score

3 + (-2) + 4 = 5 total points.

Mt. Everest Height

8848 m above sea level.

Marianas Trench Depth

11,776 m below sea level.

Height Difference Calculation

8848 - (-11,776) = 20,624 m.

Airplane Altitude

3,349 m above sea level.

Submarine Depth

1,648 m below sea level.

Altitude Difference Calculation

3,349 - (-1,648) = 4,997 m.

Integer Addition Example

15 + (-12) + 10 = 13.

Integer Subtraction Example

8 - 12 = -4 (different signs).

Integer Addition with Negatives

(-11) + 7 + (-16) + 8 = -12.

Integer Addition with Multiple Terms

5 - (-13) - 8 = 10.