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Word Problems
Multiplication
Factors
Multiples
Prime or Composite
100

The plane ticket for Mexico is $1,473 per person. If a family of 5 wants to take a trip to Mexico, how much will they pay in plane tickets?

They will pay $7,365 in plane tickets.

100

7 x 98

686

100

All of the factors of 6

1, 2, 3 and 6

100

Multiples of 3 up to 25.

3, 6, 9, 12, 15, 18, 21, and 24

100

This number is prime. A. 20 B. 15 C. 10 D. 5

D. 5
200

Ms. Smith bought 5,416 donuts for the school. Each donut cost $4. How much did the donuts cost in total?

The donuts cost $21,664 in total.

200

9 x 999

8,991

200

All of the factors of 12?

1, 2, 3, 4, 6 and 12

200

The first 5 multiples of 5

5, 10, 15, 20, and 25  

200

This number is composite. A. 4 B. 5 C. 11 D. 17  

A 4

300
The newspaper subscription rate is $12 per month. How much would John pay for a 2 year subscription?
John would pay $288
300

5 x 2,412

4,824

300
All of the factors of 24.

1, 2, 3, 4, 6, 8, 12, and 24

300

The multiples of 20 up to 80

20, 40, 60, and 80

300

This number is composite. A. 5 B. 13 C. 9 D. 17

C 9

400

When you multiply 24 x 51, what partial products do you get?

You get the following partial products:

20 x 50 = 1,000

20 x 1 = 20

4 x 50= 200

4 x 1 = 4

400

83 x 17

1,411

400

The prime factors of 15

3 and 5
400

Odd multiples of 3 up to 25

3, 9, 15, and 21

400

This number is prime. A. 48 B. 66 C. 10 D. 23

D 23

500

A florist makes centerpieces. He puts 18 roses in each centerpiece. Which is the best way to use compatible numbers to estimate the number of roses the florist needs for 24 centerpieces? What is the exact number of roses?

You can use the compatible numbers 20 x 25 = 500 or 20 x 20 = 400.

24 x 18 = 432

The exact number of roses is 432.

500

91 x 40

3,640

500

The prime factors of 20

2 and 5

500

The odd multiples of 6 up to 40

none

500

The only number that is neither prime nor composite.

1