Show:
Division
Multiplication
Prime and Composite
Multiples
Factors
100
I am the number you get when 48 is divided by 4
12
100
16 x 3
48
100
The following number is prime: a) 24 b) 16 c) 5 d) 0
c) 5
100
List the first 3 multiples of 8
8, 16, 24
100
List the factors of 8
1, 2, 4, 8
200
120 divided by 5
14
200
20 x 5
100
200
A prime numbers has how many factors?
two; 1 and itself
200
List the first 5 multiples of 10 and 20. Name the LCM.
10, 20, 30, 40, 50 20, 40, 60, 80, 100 LCM = 20
200
List the multiples of 30
1, 2, 3, 5, 6, 10, 15, 30
300
The number of times 7 goes into 98
14
300
2 x 2 x 5 x 3
60
300
A composite number has how many factors?
more than 2
300
24, 36, 48, 60: These are multiples of what number
12
300
These numbers are factors of what number? 1, 2, 4, 7, 14, 28
28
400
245 is divisible by which of the following numbers? 2, 3, 5, 10?
Only 5
400
8^2
64
400
I am the smallest prime number
2
400
Explain how to find a multiple
Skip count; multiply the number by 1, then 2, then 3; keep adding the number to itself; look on the multiplication chart
400
Explain what a factor is in your own words.
Numbers that multiply to give us a product; breaking down the number
500
Any number divisible by 2 is called this
Even
500
2^2 x 3^2
36
500
0 and 1 are prime, composite, or neither? explain why
they are smaller than 1 and have less than 2 factors
500
I am the opposite of a multiple
A factor
500
List factors of 12 and factors of 18 Find the GCF.
12 - 1, 2, 3, 4, 6, 12 18 - 1, 2, 3, 6, 9, 18 GCF = 6