add subtract integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

Front

What does it mean to add integers?

Back

Adding integers involves combining their values. If both integers are positive, you add their absolute values. If both are negative, you add their absolute values and keep the negative sign. If one is positive and one is negative, subtract the smaller absolute value from the larger one and take the sign of the integer with the larger absolute value.

Front

What does it mean to subtract integers?

Back

Subtracting integers means adding the opposite. For example, to subtract a positive integer, you add its negative counterpart.

Front

What is the result of adding -3 and 1?

Back

-3 + 1 = -2.

Front

What is the result of adding -5 and -7?

Back

-5 + (-7) = -12.

Front

What is the result of subtracting -4 from 2?

Back

2 - (-4) = 2 + 4 = 6.

Front

What is the result of subtracting 3 from -2?

Back

-2 - 3 = -5.

Front

How do you find the change in temperature from -3 degrees to 1 degree?

Back

Change in temperature = Final temperature - Initial temperature = 1 - (-3) = 1 + 3 = 4 degrees.

Front

What is the difference in elevation between Mount Everest and the Mariana Trench?

Back

Difference = 29,028 feet (above sea level) + 36,070 feet (below sea level) = 65,098 feet.

Front

If Sophia's bank account shows -$25 and she deposits $47, what is her new balance?

Back

New balance = -$25 + $47 = $22.