Operations With Negative Rational Number Word Problems

Jillian owes the bank $66.25. She deposits $60.00 into her account. What is the current balance of Jillian's account?

• 6.25

• -6.25

• 126.25

• -126.25

For homework, Robert has to add 2,487 + (−3,723). Robert thinks to himself, "I know the sum will be less than zero." Is Robert correct? How can you tell if the sum of a positive and a negative number will be positive or negative? Explain your answer.

• Yes, the signs are different so he would subtract and the negative number is larger than the positive number. Therefore, the answer is negative.

• No, the signs are different so he would subtract and the positive number is larger than the negative number. Therefore, the answer is positive.

• No, the signs are different so he would multiply; therefore, the answer is negative.

• Yes, the signs are different so he would multiply; therefore, the answer is positive.

Over 5 months, a total of $400 was deducted from Wyatt’s checking account for his auto insurance. Which number sentence best illustrates the amount by which Wyatt's account changed each month?

• 400 ÷ 5 = 80

• −400 ÷ −5 = 80

• −400 ÷ 5 = −80

• 400 ÷ −5 = −80

John ordered 4 pairs of the same shoe in different colors. The chart below shows their costs. Which number sentence best shows how John's account balance will change when he pays for his orders?

• -26(4) = -104

• -28(4) = -112

• 28(4) = 112

• 26(4) = 104

  A submarine is traveling level at -80 feet below the surface of the sea.  The Captain gives orders to dive the submarine to a depth six times their current level and an additional -10 feet.  What is the new cruising level?

• -240 feet

• -470 feet

• -480 feet

• -490 feet

• -540 feet

Determine the distance in altitude between New Orleans, Louisiana (8.2 feet below sea level) and Rapid City, South Dakota (32.9 feet above sea level).

Which expression could you use to solve the problem?

• -8.2 + 32.9

• 8.2 / 32.9

• 32.9 - - 8.2

• -8.2 * 32.9

A submarine is at -125 feet in the ocean. The submarine makes three dives at 50 feet each. At what level is the submarine after the three dives?

• 150 feet

• -25 feet

• -275 feet

• -150 feet

Kate gets a paycheck twice a month. Every month, a total of $345.67 is deducted from her paycheck for taxes. If she has been paid 7 paychecks so far this year, which best represents the total effect the taxes have had on her paychecks?

• –$2,419.69

• –$1,209.85

• $1,209.85

• $2,419.69

Mr. Smith has an account balance of -$275.78.  He deposits $539.20 into his account.  What is Mr. Smith's account balance now?

• $813.98

• $263.42

• $539.78

• $345.98

The air temperature in the North Pole in the morning was 3 degrees Celsius.  By 10:00am the temperature dropped 12 degrees.  By noon the temperature had gone up 5 degrees.  At 3:00pm the temperature went up 9 degrees.  By nightfall the temperature had dropped 16 more degrees.  What was the temperature at the North Pole at nightfall?

• 11 degrees

• 0 degrees

• -11 degrees

• -9 degrees