Real-World Problem Solving Involving Rational Numbers

Ms. Sacco is investigating the habitats of various animals. She starts scuba diving off the shores of Mexico. She dives to a depth of 65 feet. The next day she climbs a mountain at an elevation of 500 feet. What is her change in elevation?

• 435 feet

• 565 feet

• 500 feet

• 65 feet

Michael is saving to buy a car. The car he wants is $2500. He has 2/5 of this saved in his savings account. How much does he have saved in his savings account?

• $2000

• $1500

• $1000

• $5000

Michael is saving to buy a car. The car he wants is $2500. He has 2/5 of this saved in his savings account. How much does he still need to save?

• $2000

• $1500

• $1000

• $2500

Kayla gets on the elevator on the ground floor. She goes down 2 floors, up 5 floors, down 1 floor, up 3 floors, down 5 floors, and up 6 floors. What floor is she on?

• 5th floor

• 6th floor

• 7th floor

• 8th floor

What is the difference between the highest recorded temperature on Earth (134 degrees Fahrenheit) and the lowest (-128.6 degrees Fahrenheit)?

• 262.6 degrees Fahrenheit

• 250 degrees Fahrenheit

• 263.6 degrees Fahrenheit

• 260 degrees Fahrenheit

Mr. Rogers lost money on his investments at a rate of $9 per day. What is the change in his investment at the end of a week?

• he lost $63

• he lost $16

• he gained $16

• he gained $63

Mr. Rogers lost money on his investments at a rate of $9 per day. He started with $653.27 in the account. How much money does he have left now?

• $590.27

• $644.27

• $716.27

• $586.27

Antwan’s car loan is automatically deducting $150 from his bank account every month. How much will the deductions total for the year?

• $1,200

• $1,500

• $1,800

• $2,000

Ms. Drevis’ garden has lots of apple trees. 120 apples fall on the ground in 30 seconds. How many apples fall in one second?

• 4 apples

• 3 apples

• 5 apples

• 6 apples

Bobby is reading a 420-page book. In the first day he reads 1/6 of the book. The next day, he reads 1/5 of the remaining pages of the book. How many more pages does Bobby have to read to finish the book?

• 320

• 280

• 350

• 266