A - Natural Numbers
20 Questions
1
Which one is a natural number
2
Which one is not a natural number
3
Find the factors of 20.
4
Find the factors of 25.
5
Find the factors of 19.
6
Find the factors of 45.
7
How many factors does 50 have?
8
How many factors does 60 have?
9
How many factors does 80 have?
10
Which one is a multiple of 3?
11
Which one is a multiple of 4?
12
Which one is a multiple of 5?
13
Which one is a multiple of 6?
14
Which one is a multiple of 7?
15
Which one is a multiple of 8?
16
Which one is a multiple of 9?
17
Which one is a multiple of both 2 and 3?
18
Which one is a multiple of both 3 and 5?
19
What is the highest multiple of 4 which is less than 100?
20
What is the highest multiple of 6 which is less than 200?