8th Grade Math STAAR Review

What is the mean absolute deviation of the following data?

$60, $75, $80, $55, $60

• $9.20

• $11.50

• $46

• $66

Tags

CCSS.6.SP.B.5C

What is the mean absolute deviation of the data, to the nearest dollar?

• $150

• $125

• $86

• $43

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

Which best describes the trend shown in the scatterplot?

• Linear Trend

• Negative Trend

• Mean Trend

• Non-Linear Trend

Tags

CCSS.HSS.ID.B.6

Which of the following does the diagram below illustrate?

• The sum of the areas of the two smaller squares is less than the area of the largest square.

• The sum of the areas of the two smaller squares is greater than the area of the largest square.

• The length of the longest side of the triangle equals the sum of the lengths of the sides.

• The sum of the areas of the two smaller squares equals the area of the largest square.

Tags

CCSS.8.G.B.6

CCSS.8.G.B.7

The distance a spring stretches varies directly as the force applied. If a force of 140 newtons stretches a spring 4 cm, how much will the force of 350 newtons stretch the same string?

• 0.625 cm

• 1.6 cm

• 10 cm

• 122.5 cm

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSA.CED.A.4

It takes Josh 3 minutes to solve 5 math problems. If this relationship represents a direct variation, how many math problems can Josh solve in 24 minutes?

• 72

• 40

• 15

• 8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.BF.A.1

How many 6-inch cookies qould equal the same area as a 12-inch cookie?

• 2

• 4

• 6

• 12

Tags

CCSS.HSG.GMD.A.1

Jacob has already saved $850 for college. He expects the total cost of the first year to be $8,990, and he expects to recieve grants and scholarships that total $1,445. Jacob plans to save $210 every month. At this rate, for how many months will Jacob need to save until he has just enough money to pay for the net price of his first year of college?

• 31 months

• 32 months

• 36 months

• 46 months

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Expression 1: 0.25x - 12

Expression 2: 18 - 0.55x

For which value of x will the two expressions have the same value?

• -100

• -20

• 7.5

• 37.5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

One-third of Kaylees age increased by 12 is equal to twice her age decreased by 3. How old is Kaylee?

• 5

• 8

• 9

• 15

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSA.REI.A.1