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Olympiad Test: Knowing Our Numbers


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20 Questions MCQ Test Advance Learner Course: Mathematics (Maths) Class 5 | Olympiad Test: Knowing Our Numbers

Olympiad Test: Knowing Our Numbers for Class 6 2022 is part of Advance Learner Course: Mathematics (Maths) Class 5 preparation. The Olympiad Test: Knowing Our Numbers questions and answers have been prepared according to the Class 6 exam syllabus.The Olympiad Test: Knowing Our Numbers MCQs are made for Class 6 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Knowing Our Numbers below.
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Olympiad Test: Knowing Our Numbers - Question 1

Observe the following pattern for obtaining the sums, and find the sum of numbers from 781 to 790. 

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 1

Observing the pattern, we see that the last two digits are 55 and the left-most digits is/are the two left-most digits of the number in the given sums. Thus, 781 + 782 + .... + 789 + 790 = 7855.

Olympiad Test: Knowing Our Numbers - Question 2

In numbers from 1 to 100, how many times does the digit 0 appear?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 2

Numbers having 0 in numbers from 1 to 100 are 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100. So, 0 appears 11 times.

Olympiad Test: Knowing Our Numbers - Question 3

How many numbers are there containing 2 digits?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 3

Number of two digit numbers = (The greatest two digit number - The smallest two digit number) + 1 =(99-10)+1 =90

Olympiad Test: Knowing Our Numbers - Question 4

How many beads should be removed from the hundreds place in the abacus shown if it has to represent a number between 550 and 650? 

 

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 4

The number represented by the abacus given is 949. To represent a number between 550 and 650, (i.e., 649) we need to remove 3 beads from the hundreds place.

Olympiad Test: Knowing Our Numbers - Question 5

Which of the following is the correct expansion of 27012?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 5

To get the expanded form of a given number, multiply each of its digits with their respective place values and write the products as a sum. 27012 = 20000 + 7000 +0+10+2

Olympiad Test: Knowing Our Numbers - Question 6

Which of the following is the greatest?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 6

The order from biggest to smallest number is  7221, 7212 , 7211 and the smallest is 7122.

Olympiad Test: Knowing Our Numbers - Question 7

Choose the correct ascending order of 6411, 6144, 6344, 6744.

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 7

Ascending order is
6144, 6344, 6411, 6744

Olympiad Test: Knowing Our Numbers - Question 8

The smallest 5-digit number formed by using the digits 5,0,3,1 and 2 only once

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 8

Arrange the numbers in incresing order which is
0,1,2,3,5 but 01235 is a 4 digit number and not 5 digit number so
10235 is the correct answer

Olympiad Test: Knowing Our Numbers - Question 9

Write the greatest 4-digit number using different digits with 6 in the tens place.

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 9

As we have to keep 6 at tens place we will freeze it at tens place
Th H T O

9 8 (6) 7

Olympiad Test: Knowing Our Numbers - Question 10

Round 3500 to the nearest thousand.

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 10

3500, 3600, 3700, 3800 and 3900 round up to 4000. To round a number to the nearest thousand, the digit in hundreds place is considered. If > = 5, rounded up and if < 5 rounded down. To round a number to the nearest ten thousand, the digit in thousands place is considered.

Olympiad Test: Knowing Our Numbers - Question 11

Which of the following is the largest 8-digit number?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 11

 Take '9' in all 8-digits to write the largest 8-digit number.

Olympiad Test: Knowing Our Numbers - Question 12

Which is the smallest 9-digit number?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 12

To write the smallest n-digit number write 1 followed by (n - 1) zeros.

Olympiad Test: Knowing Our Numbers - Question 13

What is the place value of 8 in the number 86,93,04,600?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 13

 

8×10,00,00,000=80,00,00,000=Eighty crores

Olympiad Test: Knowing Our Numbers - Question 14

How many thousands is 1 lakh?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 14

100 thousand makes up to 1 Lakh.

Olympiad Test: Knowing Our Numbers - Question 15

Which is the place that comes on the immediate right of the hundreds place in the place value chart?

Olympiad Test: Knowing Our Numbers - Question 16

What are the places in the millions period?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 16

Million Period consists of places : Million, Hundred Millions, Thousand Millions

→M,HM,TM

Olympiad Test: Knowing Our Numbers - Question 17

Under which period is ten lakhs?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 17

Ten lakhs & lakhs places are in the lakhs period.

Olympiad Test: Knowing Our Numbers - Question 18

How many millions are there in 10 crores?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 18

10 crores (or 1000 lakhs) is equal to 100 million

As 1 million= 10 lakh and 1000 lakh/10 lakh = 100 

Olympiad Test: Knowing Our Numbers - Question 19

Identify the symbol to be placed in the box 100002 □ 1000002.

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 19

100002= One lakh two

1000002= ten lakh two, So 100002 is smaller than 1000002

And hence 100002 < 1000002.

Olympiad Test: Knowing Our Numbers - Question 20

How many crores make 1 billion?

Detailed Solution for Olympiad Test: Knowing Our Numbers - Question 20

one billioion is 1,000,000,000 which is qual to 100 crores.

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