math: topic 3

Multiply: 640 × 390

• 249,600

• 293,600

• 540,000

• 768,000

1. Susan quickly estimated the product of 796 × 19 this way:

She rounded each number to the nearest ten.

She multiplied these new numbers together.

What was Susan’s estimate?

• 14,000

• 15,010

• 15,200

• 16,000

Multiply: 270 × 30

• 810

• 6100

• 6210

• 8100

Tags

CCSS.4.NBT.B.5

A seller at a farmers’ market has boxes with 10 pints of

blueberries, with 200 blueberries in each pint. What

expression gives the number of blueberries in 10 boxes?

• 20 x 10

• 200 x 10

• 200 x 10²

• 2,000 x 10³

1. If a x b = 4,200, and a and b are two-digit multiples of 10, what numbers could a and b represent?

• 70 and 60

• 700 and 60

• 6 and 70

• 4,000 and 200

Which of the following is equal to 16 x 10³ ?

• 16 x 100

• 4 x 4 x 10 x 3

• 4 x 4 x 4 x 10

• 4 x 4 x 10 x 10 x 10

Claire earns $27 an hour.

Last week, she worked for 35 hours.

How much did Claire earn last week?

• $945

• $845

• $815

• $715

Tags

CCSS.3.OA.A.3

A case of canned beans holds 24 cans. How many cans are in 36 cases?

• 744 cans

• 764 cans

• 844 cans

• 864 cans

Tags

CCSS.5.NBT.B.5

Use what you know about patterns and properties

to compute the answer of 50 x 40.

• 200

• 2,000

• 20,000

• 200,000

There are 36 classrooms at Elkins Park School.

If there are 28 students in each classroom,

how many students are there in all?

• 360 students

• 908 students

• 968 students

• 1,008 students