Exploring Unit 5 Lesson 10: Adding and Subtracting Rational Expressions

What is the result of multiplying -1 by 12?

• 0

• 1

• -12

• 12

Which of the following expressions equals 12?

• -1 * -12

• -1 * 12

• 3 * -4

• -2 * 6

What is the result of 790 divided by 10?

• 79

• 7900

• 0.79

• 7.9

What is the product of 2.1 and -2?

• 4.2

• -4.2

• -2.1

• 2.1

What is the result of multiplying a negative number by a positive number?

• Undefined

• Negative

• Zero

• Positive

What is the result of -15 times 1/5?

• 3

• 1/3

• -3

• -15

Order the following numbers from least to greatest: -5, -5.2, -5.5, -2.5, 5.5.

• -5.5, -5.2, -5, -2.5, 5.5

• -2.5, -5, -5.2, -5.5, 5.5

• 5.5, -2.5, -5, -5.2, -5.5

• -5, -5.2, -5.5, -2.5, 5.5

What is the difference in height between a submarine at -55 meters and an aircraft at 200 meters?

• 145 meters

• 255 meters

• 200 meters

• 55 meters

If Clara cycles at 12 miles per hour, how far will she travel in 45 minutes?

• 6 miles

• 9 miles

• 12 miles

• 15 miles

Fill in the missing number: -49 times 3 equals?

• -147

• 49

• 147

• -49