8th Grade Math Unit 1 Test Review

A square serving platter has an area of 124 in². Which is the best estimate of one side length of the platter?

• 31 inches

• 11.6 inches

• 11.8 inches

• 11.1 inches

Which is the correct classification of the value of 7π?

• Real, Rational, Integer

• Real, Rational

• Irrational, Integer

• Real, Irrational

Which of the following could be the missing value?

5 (1/25) , 5.1, _________, 2.4²

• √26

• √29

• √35

• √40

Tags

CCSS.8.NS.A.2

Which statement below is true about irrational numbers?

• Some irrational numbers are natural numbers.

• Irrational numbers include decimals with a repeating pattern.

• The square root of every non-perfect square will be an irrational number.

• Irrational numbers will never be real numbers.

Tags

CCSS.8.NS.A.1

Which has a value greater than 600 but less than 6,000?

• 6.1 x 10³

• 5.9 x 10⁴

• 5.26 x 10³

• 7.87 x 10³

Tags

CCSS.8.EE.A.3

Find the mean and the mean absolute deviation of the 5 daily grades that Jonathan received last week in his English class.

Day Grade

Monday 92

Tuesday 100

Wednesday 81

Thursday 94

Friday 88

• Mean = 5.2; Mean Absolute Deviation = 91

• Mean = 91; Mean Absolute Deviation = 5.2

• Mean = 455; Mean Absolute Deviation = 91

• Mean = 455; Mean Absolute Deviation = 5

Tags

CCSS.6.SP.B.5C

Which of the following shows a list of values in decreasing order?

• -6.007, -2π, -√48

• -2π, -6.007, -√48

• -2π, -√48, -6.007

• -6.007, -√48, -2π

Tags

CCSS.8.NS.A.2

Which has the same value as 3.652 x 10^-4 ?

• 0.0003652

• 36,520,000

• 0.00003652

• 36,520

Tags

CCSS.8.EE.A.3

A set of values has a mean absolute deviation of 1.8. What can we assume is true about the data?

• The average of the set of values is a very small value.

• The samllest value in the data set is 1.8.

• The difference between the largest value and the smallest value is 1.8.

• The average distance that each data point is from the mean is 1.8.

Tags

CCSS.6.SP.B.5C

Which of the following answer choices lists the values in descending order?

√170, 5√8, (40/3) , 14.025

• √170, (40/3), 5√8, 14.025

• 5√8, 14.025, (40/3), √170

• 5√8, 14.025, √170, (40/3)

• √170, (40/3), 14.025, 5√8

Tags

CCSS.8.NS.A.2