# How many times does 9 occur between 1 to 100?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

There is a total of 20 nines between 1-100. I’ll demonstrate how.

• 1 – 9
• 2- 19
• 3 – 29
• 4 -39
• 5 -49
• 6 -59
• 7 – 69
• 8 – 79
• 9 – 89
• 10 – 90
• 11 – 91
• 12 – 92
• 13 – 93
• 14 – 94
• 15 – 95
• 16 – 96
• 17 – 97
• 18 – 98
• 19 and
• 20 – 99

### Types of Numbers

Natural Numbers: Positive integers from 1 to infinity are known as natural numbers, also referred to as counting numbers. The collection of natural numbers is referred to as N, and its members are N = 1, 2, 3, 4, 5,.

Whole Numbers: Whole numbers do not contain any fractional or decimal portions and are known as non-negative integers. It is represented by the symbol W, and the set of whole numbers contains W = 0–1, 2–3, 4–5,……….

Integers: An integer is any whole number, but it also includes a set of negative natural numbers. The set of integers represented by is Z = -3, -2, -1, 0, 1, 2, 3

Complex Numbers (C): A complex number is one that can be expressed as a+bi, where a and b are real numbers and I is an imaginary number.

Irrational Numbers: The symbol P stands for an irrational number, which is a number that cannot be described as a ratio of one over another.

Imaginary Numbers: The complex numbers that may be expressed as the product of a real number and a fictitious unit I are known as imaginary numbers.

Summary:

## How many times does 9 occur between 1 to 100?

9 occurs 20 times between 1-100. In mathematics, multiplication is a method of finding the product of two or more numbers. The multiplication of numbers say, ‘a’ and ‘b’, is stated as ‘a’ multiplied by ‘b’.

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