Multiples
Factors
Divisibility Rules
Prime/Composite
Word Problems
100
The first five multiples of 10.
What is 10, 20, 30, 40, 50?
100
The factors of 20.
What is 1, 2, 4, 5, 10, 20?
100
This number is divisible by 5. a. 321 b. 333 c. 250 d. 364
What is 250?
100

What is a prime number?

A number with only two factors or one factor pair. It's only factors are 1 and itself.

100

Create an expression that will help you to solve this problem. Sandra's turtle is four times as long as her pet beetle. If Sandra's turtle is 12 centimeters long, how long is her pet beetle?

Sandra's pet beetle is 3 centimeters long.

200
The first five multiples of 3.
What is 3, 6, 9, 12, 15.
200
The factors of 28.
What is 1, 2, 4, 7, 14, 28?
200

This number is divisible by 2 and 3. a. 27  or b. 444

What is 444?

200

What is a Composite number?

A number with at least 3 factors or two or more factor pairs. A composite number is divisible by more than 1 and itself.

200

Christine baked 78 cupcakes for a birthday party. She wants to arrange the cupcakes in a rectangle on the food table. What two possible arrangements could Christine do so that the cupcakes are in rows and columns?

                                                                    She can put the cupcakes in 2 rows with 39 in each or 13 rows with 6 in each.

                                                       


    

300
The first five multiples of 7.
What is 7, 14, 21, 28, 35?
300
The factors of 36.
What is 1, 2, 3, 4, 6, 9, 12, 18, 36?
300

This number 156,945 is divisible by a. 5 and 10 b. 5 only c. 2  d. 10 only

What is 5 only?

300

Is 33 prime or composite?

Composite. It has more than 1 factor pair. 3 x 11 = 33 and 1 x 33 = 33

300

Jackie ate chocolate in packs of 3. Rachel ate chocolate in packs of 5. They each ate the same amount of chocolate. What are three different amounts they could have eaten?

Jackie 3 x 5 = 15 , 3 x 10 = 30 ,  3 x 15 = 45

Rachel 5 x 3 = 15 , 5 x 6 = 30  ,  5 x 9 = 45

400
The first five multiples of 25.
What is 25, 50, 75, 100, 125?
400
The factors of 23.
What is 1, 23?
400

The number 250 is divisible by the following a. 2, 5 and 10 or b. 2, 3, 10,

a. 2, 5, 10

400

I am the only prime number less than 100 that has a 9 in the tens place. What number am I?

                                                       


    

97

400

Tommy was skip counting by 16’s while counting shirts in his mom’s store. He said 16, 32, 48, 64, and 80. What is the next number he will say?

    

96 shirts.

500
The first five multiples of 13.
What is 13, 26, 39, 52, 65?
500
The factors of 100.
What is 1, 2, 4, 5, 10, 20, 25, 50, 100
500

What does divisible mean?

The number is capable of being divided by with no reminder. The number goes into the other number without any leftovers.

500

I am the only prime number where the digit in my ones place is the same digit as in my tens place. What number am I?                                    


    

11

500

Gina’s Flower Shop has 36 flowers that they need to put into bouquets. They must use the same number of flowers in each bouquet. The number of flowers must be greater than 1 and less than 9. How many flowers could be in each bouquet? (more than one answer)

2, 3, 4 or 6 flowers in each bouquet.

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