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10 Questions MCQ Test Mathematics Olympiad Class 4 | Olympiad Test: Number System -1

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Attempt Olympiad Test: Number System -1 | 10 questions in 20 minutes | Mock test for Class 4 preparation | Free important questions MCQ to study Mathematics Olympiad Class 4 for Class 4 Exam | Download free PDF with solutions
QUESTION: 1

99,999 is the greatest ________ digit number.

Solution:

Greatest 5 digit number = 99999

QUESTION: 2

Place value of 5 in 5,43,621 is ________.

Solution:

Place value of 5 in 5,43,621
= 5 × 100,000 = 500000 = 5 lakh

QUESTION: 3

Smallest 6 digit number = _________.

Solution:

On adding one to the largest five digit number, we get 100000 which is the smallest six digit number.

Smallest 6 digit number = 1,00,000

QUESTION: 4

300000 + 20000 + 4000 + 200 + 2 = ________.

Solution:

We have 300000 + 20000 + 4000 + 200 + 2 QUESTION: 5

Ones period includes:

Solution:

The ones period consists of the digits in the hundreds, tens, and ones places.

QUESTION: 6

Lakhs period includes:

Solution:

The first period, called ones period, is formed with the first three digits of the number. The second period, called thousands period, is formed with the next two digits of the number. The third period, called lakhs period, is formed with the next two digits of the number.

QUESTION: 7

Thousands period includes:

Solution:

The ones period consists of the digits in the hundreds, tens, and ones places. The thousands period consists of the three places to the left of the ones period. The millions period consists of the three places to the left of the thousands period.

QUESTION: 8

Pick the odd one out :

Solution:

Apart from option d all others are used to define place value to number.

QUESTION: 9

We use ____________ to separate the periods.

Solution:

We use comma to separate the periods.

QUESTION: 10

4,37,283 is a ___________ number.

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