Pre-Algebra, Unit 9 Practice Test Worksheet Page 3

16. Solve the equation:

81 x

17. (SE/SBAC) Determine whether each of the numbers in the first column below is rational,

irrational, and/or real. Indicate your answers by placing a  to the right of the number under

the categories that apply.

Number

Rational

Irrational

Real

−

18. (SBAC) Classify the numbers in the box as perfect squares and/or perfect cubes. To classify a

number, place the number in the appropriate column in the chart. (Numbers that are neither

perfect squares nor perfect cubes should not be placed in the chart.)

1 16 27 44 64 200 225

Perfect squares but NOT

Both perfect squares and

Perfect cubes but NOT

perfect cubes

perfect squares

19. (SBAC) Approximate the value of 115 . Explain your thinking.

Pre-Algebra Practice Test

Unit 9: Square and Cube Roots; Irrational Numbers

Page 3 of 4

Revised 2015 - NVACS

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