Show:
Factors
Multiples
Prime or Composite
Fast Multiplication
Fast Addition
100

Factors of 6

1, 2, 3, 6

100

Write 3 multiples of 5

10, 15, 20

100

Prime or Composite: 3

Prime

100

5 x 2

10

100

15 + 5

20

200

Factors of 9

1, 3, 9

200

Write 3 multiples of 6

12, 18, 24

200

Prime or Composite: 9

Composite

200

6 x 3

18

200

21 + 8

29

300

Factors of 20

1, 2, 4, 5, 10, 20

300

Write 3 multiples of 8

16, 24, 32

300

Prime or Composite: 15

Composite

300

5 x 5

25

300

23 + 9

32

400
Factors of 36

1, 2, 3, 4, 6, 9, 12, 18, 36

400

Write 3 multiples of 12

24, 36, 48

400

Prime or Composite: 2

Prime

400

9 x 9

81

400

50 + 15

65

500

Factors of 66

1, 2, 3, 6, 11, 22, 33, 66

500

Write 4 multiples of 200

400, 600, 800, 1000

500

Prime or Composite: 57

Composite 

500

8 x 7

56

500

120 + 23

143