Grade 7 Glossary - Unit 1

What is the definition of 'absolute value'?

• The distance of a number from zero on a number line; is always positive; represented as |n|.

• The value of a number without considering its sign.

• The square of a number.

• The reciprocal of a number.

What is an example of 'absolute value'?

• |−5| = 5

• |5| = -5

• |0| = -0

• |-3| = -3

What is the definition of 'additive inverse'?

• A number and its opposite whose sum is 0; also called a zero pair.

• A number that is multiplied by another number to get 1.

• A number that is divided by another number to get 1.

• A number that is added to another number to get 1.

What is an example of 'additive inverse'?

• −3 + 3 = 0

• 3 + 3 = 6

• −3 − 3 = −6

• 3 − 3 = 0

What is the definition of 'commutative property'?

• States that numbers can be added or multiplied in any order.

• States that numbers can only be added in a specific order.

• States that subtraction can be done in any order.

• States that division can be done in any order.

What is an example of 'commutative property'?

• 2½ + 5 = 5 + 2½

• 2½ + 5 = 7½

• 5 - 2½ = 2½ - 5

• 2½ * 5 = 5 * 2½

What is the definition of a negative number?

• Values less than 0

• Values greater than 0

• Values equal to 0

• Values that are imaginary

Which of the following is an example of a positive number?

• -3

• 0

• 2

• -1

What is a rational number?

• Whole numbers, fractions, and decimals represented as a ratio of two integers; can be represented in fractional form (where x and y are integers & y ≠ 0)

• Numbers that cannot be expressed as a fraction

• Numbers that are only whole numbers

• Numbers that are only decimals

What is the value of zero?

• A number with no value; is neither negative nor positive

• A positive number

• A negative number

• An imaginary number