Rounding

A restaurant is planning to serve a roast beef dinner to 148 people. If 1 pound will serve 3 people, which is the best estimate of the number of pounds of roast beef the restaurant should cook? Round to nearest ten.

• 50 lb.

• 20 lb.

• 60 lb.

• 40 lb.

A school library has 563 books. They are arranged on 8 shelves. Which is the best estimate of the number of books on each shelf? Round to the nearest ten.

• 90

• 60

• 70

• 80

A hotel has 628 rooms with the same number of rooms on each floor. If the hotel has 7 floors, which is the best estimate of the number of rooms on each floor?

• 50

• 100

• 80

• 90

The student council is planning to serve 298 people the school's annual spaghetti supper. If each package of spaghetti will serve 5 people, which is the best estimate of the number of packages of spaghetti the student council should purchase? Round to the nearest ten.

• 60

• 50

• 90

• 70

A carton of juice contains 4 servings. Mrs. Lara plans to serve juice to 118 students at a school party. Which is the best estimate of the number of cartons of juice she must buy? Round to nearest ten.

• 10

• 30

• 40

• 20

The Mendez family took a 195- mile rafting trip on the Colorado River for 5 days. If they rafted the same number of miles each day, which is the best estimate of the number of miles rafted each day? Round to the nearest hundred.

• 10 mi.

• 20 mi.

• 30 mi.

• 40 mi.

Tyler says 753 rounds to 800.  Alexis says 753 rounds to 750.  Who is correct?

• Tyler

• Alexis

• Both of them are right, it depends on whether you are rounding to the nearest ten or hundred

• Niether of them are right

Estimate  75 x 74 

• 5,550

• 5,600

• 56,000

Round 37 to the nearest ten.

• 45

• 35

• 50

• 40

Round 125 to the nearest hundred.

• 75

• 150

• 200

• 100