Practice Interim Math 8

Evaluate the expression. (–4 × 2)^-2

• 1/64

• 1/32

• 1/16

• 64

Which value is equivalent to (6^-9)/(6³)?

• 6^-3

• 6^-6

• 6^-12

• 6^-27

Solve: 9⁰/9^-2

• 1/81

• 1/9

• 81

• 729

Glaciers advance at a rate of about three–millionths of a meter per second. Which of these represents the approximate rate at which glaciers advance?

• 3 × 10^-9 meters per second

• 3 × 10^-8 meters per second

• 3 × 10^-6 meters per second

• 3 × 10^-5 meters per second

The distance of Mercury from the Sun is about 3.6 × 10⁷ miles, while the distance of Pluto from the Sun is about 3.7 × 10⁹ miles. About how many times farther from the Sun is Pluto than Mercury?

• 2 times farther

• 20 times farther

• 100 times farther

• 1000 times farther

How many times larger is 5 × 10⁶ than 5 × 10²?

• 125

• 625

• 1000

• 10,000

Which of these equations are correct? Select three that apply.

• (4.6 × 10⁵) – (2.1 × 10⁴) = 250,000

• (8.8 × 10⁸) – (6.2 × 10⁷) = 818,000,000

• (9.9 × 10⁷) – (5.8 × 10⁶) = 9,320,000

• (7.3 × 10⁶) – (4.2 × 10⁵) = 6,880,000

• (3.6 × 10⁵) – (1.1 × 10⁴) = 349,000

What is the product of (8.8 × 10⁶)(5 × 10²)?

• 4.4 × 10⁸

• 4.4 × 10⁹

• 4.4 × 10¹⁰

• 4.4 × 10¹²

The picture above shows a parallelogram–shaped bookshelf Aaron bought for his wall. He rotates the shelf 90° clockwise and then 180° counterclockwise to decide how to arrange it on the wall. Which of the following statements is true about this shelf after Aaron rotates it?

• The measure of angle Q would be 70°.

• The measure of angle R would be 70°.

• The measure of angle S would be 110°.

• The measure of angle P would be 140°.

If 2 parallel lines are cut by a transversal, alternate interior angles are __________.

• complementary

• supplementary

• congruent

• corresponding