Are You Ready for 8th Grade Math?

-4 + -7 =

• 3

• -11

• 11

• -3

8 - 13 =

• -5

• 5

• 21

• -21

3 + -9

• -12

• 12

• -6

• 6

Solve for n.

8n = 40

• n = 48

• n = 32

• n = 240

• n = 5

Solve for n.

n + 7 = 2

• n = 9

• n = -5

• n = 5

• n = -9

Solve for n.

-6n - 4 = 20

• n = -4

• n = 4

• n = 30

• n = -30

• n = 22

• n = -8

• n = 40

• n = -40

Simplify.

-4(n + 5)

• 4n + 20

• -4n - 20

• -4n + 5

• -4n + 20

• 16 + 2n

• 16 + n

• 4 + n

• 4 + 1/2n

A pool lost 1,000 gallons of water in 4 hours. If the pool loses the same amount of water each hour, what is the unit rate?

• 400 gallons per hour

• 4,000 gallons per hour

• 250 gallons per hour

• 25 gallons per hour