Multiplying by Whole Number

Which of the following are equal to 420 x 3?

Choose all that apply.

• (3 x 400) + (3 x 20)

• 420 + 420 + 420

• (3 x 400) + (3 x 2)

• 1,260

Which model(s) below could represent the solution to the problem 45 x 15?

Choose all that apply.

• 
• 
• (4 x 1) + (4 x 5) + (5 x 1) + (5 x 5)

• (4 x 1) + (5 x 5)

• 

The bell on a clock tower rings every 15 minutes. If the bell has rung 24 times, how many minutes have passed?

• 220 minutes

• 342 minutes

• 360 minutes

• 380 minutes

One mile is 5,280 feet. How many feet are in 6 miles?

• 30,068

• 30,168

• 31,248

• 31,680

Tell whether the number sentence is True or False.

18 x 42 = (10 x 40) + (10 x 2) + (8 x 40) + (8 x 2)

• True

• False

Can the expression be used to solve 29 x 14?

Choose Yes or No.

(9 x 4) + (20 x 4) + (9 x 1) + (20 x 1)

• Yes

• No

Mr. Lambert is planning a pizza party for 273 people. He plans on 3 slices of pizza for each person. How many slices of pizza is this in all?

• 273

• 546

• 619

• 819

A person blinks about 16 times per minute. About how many times does a person blink in 3 hours?

(Hint: 1 hour = 60 minutes)

• 48

• 96

• 960

• 2,880

A hardware store has 147 containers of paint. If each container holds 5 gallons of paint, how many gallons of paint are at the store?

• 235

• 505

• 735

• 905

Tell whether the number sentence is True or False.

37 x 22 = (30 x 20) + (30 x 20) + (7 x 20) + (7 x 20)

• True

• False