Show:
3 digit by 1 digit multiplication
4 digit by 1 digit multiplication
2 digit by 2 digit multiplication
Factors and Multiples
LCM and GCF
Prime
Numbers
100

564 x 4

2,256

100

1,324 x 2

2,648

100

13 x 47

611

100

List the first six multiples of 6.

6, 12, 18, 24, 30, 36

100

What is the GCF of 8 and 12

GCF is 4

100

Is 1 prime or composite?

Neither
200

325 x 5

1,625

200

4,632 x 3

13,896

200

63 x 35

2,205

200

What is the 15th multiple of 2?

30

200

What is the LCM of 4 and 10?

LCM is 20

200

What is the only even prime number?

2

300

223 x 7

1,561

300

6,542 x 5

32,710

300

74 x 27

1,998

300

Find the factors of 50

1, 2, 5, 10, 25, 50

300

What is the GCF of 22 and 33

GCF is 11

300
Find all of the prime numbers between 1 and 10.

2, 3, 5, 7

400

846 x 3

2,538

400

4,534 x 5

22,670

400

38 x 54

2,052

400

Which of these numbers are multiples of 7?

21, 24, 45, 30, 42, 60, 84

21, 42, 84

400

What is the LCM of 5 and 15

LCM is 15

400

How many factors do prime numbers have? What are they?

2

1 and the number itself

500

972 x 6

5,832

500

8,625 x 4

34,500

500

86 x 46

3,956

500

Find the factors of 28.

1, 2, 4, 7, 14, 28

500

What is the GCF of 42 and 48?

GCF is 6

500

Which number below is prime?

14    70     67      45

67