# Class 6 Maths Quiz Knowing Our Numbers MCQ

Specially designed for grade 6 students, this online maths quiz aims at clearing the concept of the chapter-” knowing our numbers“. The quiz is based on the first chapter of class 6 Maths– ‘Knowing our numbers’. The base of mathematics is numbers. Any mathematical calculation needs knowledge of the behaviour of different types of numbers. So it is important to know the concept of numbers along with the sums.

## How is the number represented?

A number can be represented in two ways:

### Numeral and Numeration.

Numeral: It shows the number in a symbolic form.
Numeration: It shows a number in words form.
For example:

 Number Numeral Numeration 9 9 nine 15 15 Fifteen

## System of Numeration:

There are two systems of numeration.

### (1) Indian system of numeration:

To represent a number in the Indian system of numeration we use ones, tens, hundreds, thousands, lakhs, Ten lakhs, crore, and so on.
Commas play a very important role. Starting from the right side, that is, the unit’s digit, the first comma is put after the hundreds place and marks thousands. The second comma comes after the hundreds place and marks lakhs. After that commas are put after every two digits to mark lakh, crore, and so on.
For example:
33,20,925
1,45,354

### (2) The international system of numeration.

In the international system of numeration, we use ones, tens, hundreds, thousands, and then millions and billions and so on, instead of lakhs, Ten lakhs, crore.
Commas play a very important role here too. Starting from the right side, that is, the unit’s digit, the commas are put after every three digits. The first comma is put after the hundreds place which marks thousands. The second comma comes after three digits and marks millions and so on.
For example:
3,320,925
145,354
So, that way we can say that
1 million = 10 lakhs
10 million = 1 crore
1 billion = 100 million
1 billion = 100 crores
Place value and the Face value
In simple language place value is the value of a digit multiplied by its position in the number.
For example, in 5,243, 5 is in the thousands place. So the place value of 5 will be 5 x 1000 = 5000.
The face value of a digit is nothing but the digit itself. That means in the above example, the face value of 5 will be 5.

## Roman Numerals

Following are the Roman numerals symbolizing the counting numbers:

 1 5 10 50 100 500 1000 I V X L C D M

 1 2 3 4 5 6 7 8 9 I II III IV V VI VII VIII IX

 10 20 30 40 50 60 70 80 90 X XX XXX XL L LX LXX LXXX XC

 100 200 300 400 500 600 700 800 900 C CC CCC D DC DC DCC DCCC CM

## Other topics in the chapter :

### Smallest and greatest numbers

For example:
The smallest number of five digits is 10000 and
The largest number of five digits is 99999.

### comparing numbers

Which number is bigger and which digit is smaller can be compared by comparing the number of digits.
For example, Comparing and arranging the numbers 231, 5674, 81, 9, 24765 in ascending order we can say that,
9 < 81 < 231 < 5674 < 24765

### Estimating to the nearest tens by rounding off

 164 becomes 170 5,678 becomes 5,680 86 becomes 90

### Estimating to the nearest hundreds by rounding off

 5,678 becomes 5,700 234 becomes 200 78 becomes 100

## Class 6 Maths Knowing Our Numbers MCQ / Quiz

Before attempting this quiz, if you want to recap the chapter and go through the sums, you can watch this series of video tutorial of the chapter – Knowing our numbers.

Video Tutorial: Knowing Our Numbers

Now as you are ready to attempt these multiple-choice questions from this online quiz, please go through the rules first.

### Rules For The Quiz:

• This quiz has 10 multiple-choice questions.
• Each sum has 2 marks.
• So the maximum marks are 20.
• There is no time limit.
• You should be ready with a pen and copy in your hand to solve the sums.
• keep your Maths book away from you. This is the test of your memory. So do not take the help of the Maths book.
• The correct answer and explanation are provided at the end of this quiz.

Do not forget to share your score in the comments box below.
Thank you. Happy learning. Always say Yes to maths.

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