Solving mathematical and real-world problems involving all forms of rational numbers

Karl earned $142.37 this month running errands for his uncle’s business. If he needs to pay $38.81 for a bill, about how much does he have left to spend?

• $100.00

• $130.00

• $150.00

• $180.00

Jaime wrote 4.4-0.33 = 1.1. Is his answer reasonable?

• No, the estimate would be 4-0=4

• Yes, the estimate would be 4.4-0.33=1.1

Lesson 11

Kevin spends $𝟏𝟏. 𝟐𝟓 on lunch every week during the school year. If there are 𝟑𝟓. 𝟓 weeks during the school year, how much does Kevin spend on lunch over the entire school year? Remember to round to the nearest penny.

• $399.38

• $399.37

• $399.36

• $399.35

Jessica’s bill at Terrific Tacos was $23.50 not including tax.  She wants to leave a tip that is around 18% of the bill.  What is the total cost of the lunch, including the tip, without the tax?

• $4.23

• $23.68

• $25.38

• $27.73

Kaci had $100 to spend for school clothes. She bought a skirt for $33.76, two shirts for $10.15 each, and a pair of shoes for $23.55. She spent the rest of the money for a belt. About how much money did Kaci's belt cost?

• $42
• $22
• $32
• $52

A patio is rectangular. Its length is 8.3 meters and its width is 5.6 meters. What is the approximate perimeter of the patio? Round your answer to the nearest whole number.

• 47 meters

• 28 meters

• 14 meters

• 27.8 meters

The Bailey family is traveling 487.5 miles for a family vacation. If they estimate they can

travel 75 miles per hour, how many hours will it take for the Bailey’s to arrive? ____hours

Alice earned $19.75 on Monday, $11.25 on Wednesday, and $27.85 on Saturday. About how much did she earn in all?

• $50.00

• $57.00

• $60.00

• $62.00

Clara bought a brand new car for $26,086. The estimated value of the car after 5 years is $15,990. If she sells the car after 5 years, by how much less money would she have?

• $10,096

• $10,095

• $10,098

• $10,987

The Graf family made 2 pizzas. They ate 1 1/8 pizza BEFORE a movie, and 1/2 pizza AFTER the movie. What is a reasonable estimate for the leftover pizza?

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