Math Problem Solving 18

Rodney works in a library and has 72 books on his cart. He is putting an equal number of books on 9 different shelves. Which number sentence could be used to find the number of books Rodney puts on each shelf?

• 72 x 9 = ____

• 72 - 9 = ____

• 9 / ____ = 72

• 9 x ____ = 72

There are 8 backpacks. Each backpack has 4 folders, and each folder has 2 pockets.

What is the total number of pockets in the backpacks?

• 24

• 64

• 32

• 8

On a train, there are 8 cars with 11 people each. A ninth car has only 6 people. Which is the best estimate of about how many people are on the train?

• 10 + 10 + 5, so about 25 people

• 8 x 10 x 5, so about 400 people

• 8 x 5 + 10, so about 50 people

• 8 x 10 + 6, so about 86 people

Roberto plays basketball after school. He plays for 60 minutes a day. How many minutes in all will he play over 9 days?

60 x 9 = _______

• 150

• 630

• 90

• 540

Tommy's mother needs to buy 8 pizzas for a party. Each pizza cost $9. She had a coupon for $3 off the total purchase. How much does Tommy's mother pay for the pizzas in all?

• $216

• $69

• $20

• $48