Factors and Multiples
Prime Numbers
Square and Triangular Numbers
Decimal Fractions
100
12, 24, 36, 48, 60
What are the first 5 multiples of 12?
100
A number with factors of only 1 and itself.
What is a prime number?
100
144
What number is 12 squared?
100
1/4
What is 0.25 written as a common fraction?
200
1, 18, 4, 3, 9, 6, 2, 36, 12
What are the factors of 36
200
1, 81, 3, 27, 9, COMPOSITE
What are the factors of 81 and is it prime or composite?
200
8
What is the square root of 64?
200
1/8
What is 0.125 written as a common fraction?
300
36 (Hint LCM)
What is the lowest common multiple of 12 and 9?
300
2
What is the smallest prime number?
300
Xn = n(n+1)/2
What is algebraic rule for finding a triangular number?
300
33%
What is 0.33 written as a percentage?
400
65 (Hint LCM)
What is the lowest common multiple of 13 and 5?
400
Always even
What is the sum of two prime numbers greater than 10?
400
Always a square number
What is the sum of two triangular numbers?
400
0.1%
What is 0.001 written as a percentage?
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