Applying Operations on Rational Numbers to Solve Mathematical and Real-World Problems

(9-5)×(15+8.03)-16

• 92.23

• 76.12

• 76.013

You should have answered -24 for the last problem. Remember, the original problem was -2 + 8 x -3. We multiplied 8 x -3 to get -24. Now we replace the 8 x -3 in the original problem with -24. So now we have -2 + -24. What does this equal?

• -22

• -26

• 22

• 26

Ms. Visceglie bought 2 ½ pounds of rainbow cookies. Her sister ate ¾ of a pound. Then, she went back to the store and bought 2 more pounds of rainbow cookies. How many pounds of rainbow cookies does Ms. Visceglie have now? 

• 3½ 

• 13½ 

• - 3½ 

• 2 ½ 

I have two accounts in the same bank, one with some money in it and the other in red. The sum of the balances is $6, and the difference is $22. What is the balance of each account?

• -$8 and $14

• -$5 and $147

• -$8 and $21

• -$8 and -$14

Juan spent $9.49 on school supplies. He spent $1.59 on pencils, twice that much on pens, and the rest on highlighters. How much money did Juan spend on highlighters?

• $4.72

• $6.31

• $7.90

• $11.80

Mandy spent $12.39 on a new scarf. Then she got a pack of gum for $3.27. She gave the the cashier a $20.00 bill. What is her change that she will get back. 

• $4.24

• $15.66

• $3.43 

• $4.34

Elijah drives a limousine and he wants to calculate his profit at the end of the day. He spent money on gasoline, but made money on trips. He bought 14 gallons worth of gas at $4 per gallon. He drove customers 75 miles and charged them $5 per mile. How much profit did he make at the end of the day?

• $375

• $56

• $431

• $319

Marcy has $128 in her checking account. If she writes a check for $215 and deposits $80, find the balance in her account.

Joan and three of her friends entered a golf contest. The names and scores of the players on the team are shown in the table. The team’s score is the sum of all the scores in the table. 

What is the team score?

• 3

• 1

• 0

• -3