The number that even numbers are divisible by
2?
When you divide an odd number by 2, how many are left over?
1
The factors that a prime number has
2 factors, 1 and itself
How many factors a composite number has
More than 2
All odd numbers are prime. True or false?
False
Even numbers end in ____, ____, ____, ____, or ____
0, 2, 4, 6, or 8
Odd numbers always end in ___, ___, ___, ___, or ___
1, 3, 4, 7, 9
Which of these is a prime number?
A. 39
B. 41
C. 100
D. 24
B. 41
Which of these is a composite number?
A. 9
B. 5
C. 11
D. 7
A. 9
Is the sum of 18 and 25 even or odd?
Odd
Which of these is NOT an even number?
A. 22
B. 98
C. 45
D. 12
C. 45
Which of these is NOT an odd number?
A. 13
B. 65
C. 37
D. 100
The number 1 is...
Neither prime nor composite
What are the first 4 composite numbers?
4, 6, 8, 9
Which of these is a prime number?
A. 42
B. 57
C. 79
D. 38
C. 79
The sum of two even numbers is always...
Even or odd?
Even
The sum of two odd numbers will always be...
Even or odd?
Even
What are the first 4 prime numbers?
2, 3, 5, 7
Are all composite numbers even?
No
A. 3 groups of 5 students
B. 4 groups of 3 students
C. 7 groups of 3 students
D. 3 groups of 6 students
D. 3 groups of 6 students
The product of an even and an odd number is always...
Even or odd?
Even
Even or odd?
Odd
Are all prime numbers odd?
No, the number 2 is even
The factors of the composite number, 24
1 x 24, 2 x 12, 3 x 8, 4 x 6
Carly had some books that she divided equally with her sister. How many candies could Carly have started with?
A. 7
B. 11
C. 9
D. 4
D. 4