Rational Numbers and Operations Quiz

Which of the following is a natural number?

• 0

• -5

• 1.5

• 3

Which of the following is a rational number?

• √2

• π

• 0.75

• e

What is the result of adding -7 and 5?

• -12

• 12

• 2

• -2

What is the result of subtracting 15 from -10?

• -5

• 5

• -25

• 25

How do you determine the sign of the result when multiplying two negative integers?

• The result is zero

• The result is undefined

• The result is positive

• The result is negative

When adding fractions, what is a crucial step to ensure accuracy?

• Converting to percentages

• Rounding to the nearest whole number

• Finding a common denominator

• Aligning decimal points

Dan bought 4 shirts at $32.49 each and paid $7.25 for delivery. What was the total cost?

• $132.49

• $129.96

• $137.21

• $140.00

Mrs. Jones needs 16.5 feet of border. She has 3.25 feet and 5.5 feet. How much more does she need?

• 7.75 feet

• 8 feet

• 6.5 feet

• 7.25 feet

Christy has 2.2 gallons of paint, each covering 360.5 square feet. How much area can she cover?

• 793.1 square feet

• 800 square feet

• 720 square feet

• 750 square feet

What is the value of 24.65 divided by -8.5?

• 2.9

• 3.5

• -3.5

• -2.9