Unit 5 Review: Numbers and Number Patterns

Factors

100

What are the factors of 12?

1, 2, 3, 4, 6, 12

200

What factor does every single number have? 

1

300

What are the factors of 30?

1, 2, 3, 5, 6, 10, 15, 30 

400

What are the factors of 64?

1, 2, 4, 8, 16, 32, 64

500

Riddle: I am a number between 5 and 10. I have exactly 3 factors... myself, 1, and one other number. What number am I?

9 

Prime/ Composite

100

What does it mean if a number is prime? 

If a number only has 2 factors: 1 and itself

200

Is 19 prime or composite?

prime

300

Is 48 prime or composite?

composite

400

Is 2 prime or composite?

prime

500

Is 87 prime or composite?

composite

Patterns

100

What is the pattern rule of 2, 4, 6, 2, 4, 6, 2, 4, 6?

Repeat 2, 4, 6

200

Determine the rule of the pattern: 40, 35, 30, 25, 20, 15

Rule: subtract 5

300

Determine the rule for this pattern. Extend it 3 more numbers: 8, 12, 16, 20, 24...

28, 32, 36

(rule: add 4)

400

What is the rule for this pattern? 2, 4, 8, 16, 32, 64

multiply by 2

500

Determine the rule of the pattern. Find the missing number in the pattern: 3, 6, ___, 12, 15

9

(rule: add 3)

Multiples

100

Skip count by 4. Those numbers are the _______ of 4. 

4, 8, 12, 16, 20

multiples

200

What is the trick to know if a number is a multiple of 5? 

If the number ends in 0 or 5.

300

List the first five multiples of 8.

8, 16, 24, 32, 40

400

What is the difference between the listing NEXT five multiples of 10 and the FIRST five multiples of 10?

The NEXT five multiples starts with the multiple after 10, so 20. The FIRST five multiples starts with 10. 

500

List the next 5 multiples of 12.

24, 36, 48, 60, 72