Factors and Multiples
What are the first 4 multiples of 10?
10, 20, 30, 40
How do you find an equivalent fraction?
Multiply or divide the numerator and denominator by the same number.
Which fraction is greater: 3/4 or 1/4
3/4
2 x 4/12
8/12
What are the factors of 9?
1, 9, 3
What is a composite number?
A number with more than 2 factors.
Is 7/12 less than or greater than 1/2?
Greater than
Which is closer to 1 whole: 4/5 or 2/5?
4/5
What addition expression is equal to 5/4?
1/4 + 1/4 +1/4 +1/4 +1/4
2/4 +3/4
4/4 + 1/4
What are the first 10 multiples of 5
5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Is 43 prime or composte?
Prime
List and equivalent fraction to 3/4.
6/8
9/12
12/16
15/20
Which is greater: 7/10 or 3/5?
7/10
3 - 7/8
2 1/8
True or false: 18 and 21 are multiples of 3.
true
Is 98 prime or composite?
Composite
Is 1/3 less than or greater than 1/2
Less than
Is 7/8 (closer to 1 or farther from 1) than 3/4
closer
4 3/5 + 3 4/5
8 2/5
7 7/5
True
List 5 prime numbers.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97
What does it mean when the numerator is greater than the denominator?
A student says 2/3 < 3/5 because “5 is bigger than 3.” Are they correct? Prove it.
No, Just because the denominator is bigger doesn’t mean the fraction is smaller or greater. We need to compare the sizes of the fractions.
2/3=10/15
3/5=9/15
5 1/4 - 2 3/4
2 2/4