Operations on Integers

What is the definition of an integer?

• A whole number that can be positive, negative, or zero.

• A number that can only be positive.

• A decimal number that is not whole.

• A number that represents a part of a whole.

Calculate the sum: 15 + (-10).

• 3

• 5

• 7

• 10

What is the result of adding two negative integers?

• The sum is always positive.

• The sum is always zero.

• The sum is always negative.

• The sum can be either positive or negative.

Calculate 12 + (-3).

• 8

• 9

• 10

• 7

What is the result of (-7) + 14?

• 5

• 6

• 7

• 8

What is the result of (-20) + 5?

• -10

• -15

• -5

• 0

What is the sum of two positive integers?

• The sum is always positive.

• The sum can be negative.

• The sum can be zero.

• The sum is always negative.

What is the result of adding zero to an integer?

• The result is the integer itself.

• The result is zero.

• The result is one more than the integer.

• The result is one less than the integer.

What is the additive inverse of a number?

• The number that, when added to the original number, results in zero.

• The number that is multiplied by the original number to get one.

• The number that is subtracted from the original number to get zero.

• The number that is divided by the original number to get one.

What is the sum of (-18) and (-9)?

• -27

• -18

• -9

• -36