Rational Numbers Operations

-1/2 is a

• natural number

• whole number

• rational number

• none

Additive inverse of 2/5 is

• -1/2

• -2/5

• 5/2

• 0

Multiplicative inverse of 2/5 is

• 2/5

• 5/2

• -2/5

• -5/2

2/3 × -6/5

• 3/2

• 6/5

• -4/5

• none

2/5 + 3/5

• 1

• 0

• 2/3

• 3/5

All integers are also

• natural numbers

• whole numbers

• Rational numbers

• none

Tue is diving 8 1/2 feet below sea level. He decides to descend 5 1/2 more feet. How many feet below sea level is he?

• 13 2/2

• 14

• -14

• -13 2/2

Peter hiked for 6 3/4 miles. After resting, Peter hiked back along the same route for 4 1/4 miles. How many more miles does Peter need to hike to return to the place where she started?

• 2 1/2

• -2 1/2

• -11

• 11

Maggie bought 12 4/8 kg of apples to make some apple pies. What is the weight of the apples written as a decimal?

• -12.5

• 12.5

• 12.05

• 1.25

Paty has $800 in her bank account.If she writes 6 checks for exactly $29.97 each, What is her account balance after the checks are cashed?

• 179.82

• -179.82

• 620.18

• -620.18