Rational Numbers Operations Practice

7.5 x -8.5

• 50

• -65.35

• -63.75

• -50

Fill in the blanks (2 words). To SUBTRACT rationals, add the ________ ________.

• absolute value

• additive inverse

• common denominator

• improper fraction

Fill in the blanks (2 words). To ADD rationals with DIFFERENT SIGNS, subtract and use the sign of the larger ________ ________.

• absolute value

• additive inverse

• common denominator

• improper fraction

A negative number PLUS a negative number will result in an answer of:

• always positive

• always negative

• sometimes positive

• sometimes negative

A negative number MULTIPLIED by a negative number will result in an answer of:

• always positive

• always negative

• sometimes positive

• sometimes negative

A negative number DIVIDED by a positive number will result in an answer of:

• always positive

• always negative

• sometimes positive

• sometimes negative

Select ALL operations with fractions that require a COMMON DENOMINATOR

• addition

• division

• multiplication

• subtraction

Fill in the blanks (2 words). To DIVIDE fractions, ________ by the ________.

• multiply by the fraction

• multiply by the reciprocal

• divide by the reciprocal

• multiply by the common denominator

You give 1/3 of a pan of brownies to Ms. Long and 1/6 of a pan of brownies to Valery.  How much of the pan of brownies did you give away?

• 2/6

• 1/6

• 1/2

• 1/3

You go out for a long walk.  You walk 3/4 mile and then sit down to take a rest.  Then you walk 3/8 of a mile.  How far did you walk altogether?

• 1 1/8

• 3/8

• 6/8

• 1 1/4