MCQ Questions for Class 6 Maths Knowing Our Numbers Quiz 3

Ankita's age is

$48$ years. Express it in Roman system.

0%
XXXVIIII
0%
XLVII
0%
XLVIII
0%
XLV

Explanation

$48 =40 + 8$

$=XL + VIII$

$=XLVIII;$

$48=XLVIII$

The first basic Roman numeral is

0%
0
0%
I
0%
V
0%
X

Difference of

$1000$ and

$400$ (in roman number) is

0%
D
0%
L
0%
C
0%
DC

Explanation

$1000-400=DC$

Numerals that can be repeated in Roman system are

0%
$I, X \ and\ C$
0%
$I, V \ and\ X$
0%
$V, L\ and\ D$
0%
$D$

Explanation

As per the rules of writing Roman numbers, Only

$I, X, C$ , and

$M$ can be repeated;

$V, L$ , and

$D$ cannot be repeated.

Hence, Numerals that can be repeated in Roman system are

$I, X \ and \ C$

Roman numerals for

$498$

0%
CDCXVIII
0%
CDCXIV
0%
CDXCVIII
0%
CDXCVII

Explanation

The Roman numerals are represented by the following letters:

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

If a numeral is followed by another numeral of lower denomination, the two are added together;

if it is preceded by one of lower denomination, the smaller numeral is subtracted from the greater.

400 + 90 + 8 = CDXCVIII

$CDXCVIII=498$

Write

$39$ in roman numbers

0%
XXXIX
0%
XXXXI
0%
XXXX
0%
None of these

Explanation

To convert

$39$ to Roman Numerals we need to split it up into place values (ones, tens, hundreds, etc.):

Place Value Number Roman Numeral

Tens

$30$

$XXX$

Ones

$9$

$IX$

$\Rightarrow$ Please note that we skipped place values that equal

$0$ .

$39$ can be represented in roman numbers as

$XXXIX.$

So option

$A$ is the correct answer.

9798745995 is written with periods in international system as __________.

0%
97.98,74,59,95
0%
9,79,87.45,995
0%
9,798,745,995
0%
979,874,599,5

Explanation

The given number is

$9798745995$ .

As per the international place value system, the number can be written as:

$9,798,745,995$

Hence,

$9798745995$ is written with periods in international system as

$9,798,745,995$ .

Greatest five digit number that can be formed using

$7, 9, 0, 5, 2$ is ________.

0%
$79052$
0%
$90752$
0%
$97520$
0%
$97052$

Explanation

To form the greatest

$5$ digit number we write the given numbers in descending order.

The number we form is

$97520.$

So option C is the correct answer.

Ten lakh = _________.

0%
$10$ million
0%
$1$ million
0%
$100$ million
0%
$10$ crore

Explanation

$10$ lakh

$=$

$1000000$

$1$ million

$=$

$1000000$

Therefore,

$ten\ lakh = 1\ million$

Hence,

$Op-B$ is correct.

Round

$3500$ to the nearest thousand.

0%
$3000$
0%
$3600$
0%
$4000$
0%
$4500$

XC is same as __________.

0%
100 - 10
0%
100 + 10
0%
100 - 50
0%
100 - 9

Explanation

We know that

$X=10, C=100$

Therefore,

$XC=100-10$

Hence, this is the answer.

The symbol that can never be repeated is

0%
I
0%
V
0%
X
0%
M

Explanation

The double of

$V (5)$ in Roman numerals will be

$X (10)$

So only

$V$ is the symbol that cannot be repeated.

Compare 67389145 _ 673891450 using (>, <, = )

0%
<
0%
>
0%
=
0%
None

In Roman numeration system, there are only ________ basic numerals.

0%
$10$
0%
$9$
0%
$8$
0%
$7$

Explanation

There are seven basic Roman Numerals.

They are

$I, V, X, L, C, D$ and

$M$ .

These numerals stand for the number

$1, 5, 10, 50, 100, 500$ and

$1000$ respectively.

So option D is the correct answer to fill the blank.

Read the number:

$88,789$

0%
Eight thousand eight hundred seven eighty nine.
0%
Eighty eight thousand seven hundred eighty nine.
0%
Eighty eight thousand eight hundred eighty nine.
0%
Eighty eight thousand seven hundred ninety eight.

Explanation

$88,789$ reads as Eighty eight thousand seven hundred eighty nine

$8$ is at ten thousand's place,

$8$ at thousand's place,

$7$ at hundred's place and so on.

Round off

$231$ to nearest

$100.$

0%
$200$
0%
$300$
0%
$250$
0%
$350$

Explanation

$\Rightarrow$ In number

$231$ ,tens digit is

$3$

$\Rightarrow$ Its tens digit is 3, which is less than 5. So, we replace each of the tens and ones digits by

$0$ and keep the other digits as they are to round off the given number to nearest hundreds.

$\therefore$ Round of 231 to nearest 100 is

$200$ .

The smallest three digit number formed by the digits

$2, 0$ and

$3$ .

0%
$203$
0%
$032$
0%
$302$
0%
None of the above

Explanation

The numbers formed by

$2, 0$ and

$3$ are

$203, 302, 023, 320, 230$ and

$032$ .

The smallest 3 digit number formed is

$203$ .

So, option A is correct.

Numeral for ninety million ninety thousand ninety is

0%
9090090
0%
90090090
0%
909090
0%
none

Explanation

$1$ Million

$=1,000,000$

$\Rightarrow$

$90$ Million

$=90\times 1,000,000=90,000,000$ ---- ( 1 )

$1$ thousand

$=1,000$

$\Rightarrow$

$90$ thousand

$=90\times 1000=90,000$ ---- ( 2 )

$\Rightarrow$ Ninety can be written as

$=90$ ---- ( 3 )

Adding ( 1 ), ( 2 ) and ( 3 ) we get,

$\Rightarrow$

$9,00,00,000+90,000+90=9,00,90,090$

$\therefore$ Numeral for ninety million ninety thousand ninety is

$90,090,090$

Compare

$9848022335$ and

$9848023435$
using (>. <. =)

0%
<
0%
>
0%
=
0%
none

Numeral for

$CCCXLVII$

0%
$357$
0%
$347$
0%
$367$
0%
$387$

Explanation

The Roman numerals are represented by the following letters:

$I = 1$

$V = 5$

$X = 10$

$L = 50$

$C = 100$

$D = 500$

$M = 1000$

If a numeral is followed by another numeral of lower denomination, the two are added together;

if it is preceded by one of lower denomination, the smaller numeral is subtracted from the greater.

CCCXLVII

$100 + 100 + 100 + 40 + 7 = 347$

Find the correct option such that the formation of

$3$ numbers, using three digit number

$128$ ? (Without repeating the numbers)

0%
$281, 221$ and $182$
0%
$281, 851$ and $182$
0%
$681, 821$ and $182$
0%
$281, 821$ and $182$

Explanation

$128$ can be written using the general form

$abc = 100 \times a + 10 \times b + c$
By changing the alphabetic orders of

$a, b, c$ , we get

$3$ more numbers from

$3$ digit number.
Here,

$281, 821$ and

$182$ are formed from the

$3$ digit number

$128$ .

Round off

$829$ to nearest

$100$ .

0%
$800$
0%
$700$
0%
$900$
0%
$850$

Explanation

The given number is

$829$

Its tens digit is

$2$ , which is less than

$5$ . So, we replace each of the tens and ones digits by

$0$ and keep the other digits as they are to round off the given number to nearest

$100.$

$\therefore$ Round off

$829$ to nearest

$100$ is

$800$ .

Sum of

$10$ and

$40$ in roman number is

0%
C
0%
V
0%
L
0%
D

Explanation

The sum of

$10$ and

$40$ is,

$10+40=50$

$50$ is written as the symbol L in Roman numerals.

Option C is the correct answer.

Which of the following are the three digit numbers that can be formed by using

$0, 1$ and

$2$ only once.

0%
$102$
0%
$201$
0%
$012$
0%
None of the above

Explanation

Three digit numbers that can be formed from 0, 1 and 2 are

$102$ and

$201$ .
So, (c) is not a three digit number.

So, options A and B are correct.

Form the highest 4-digit number using the given digits: 4, 7, 2, 9.

0%
$9742$
0%
$9724$
0%
$9472$
0%
$9274$

Explanation

The given digits are

$4,\ 7,\ 2,\ 9$ .

The largest

$4-$ digit number that can be formed using the digits

$4,7,2,9$ will have the digits in descending order, i.e.

$9,7,4,2.$

$\therefore\$ Highest number formed is

$9742$ .

Write in numerals:
Ten lakh ninety thousand nine hundred nine.

0%
$10,09,099$
0%
$10,90,909$
0%
$10,909$
0%
$10,09,909$

Explanation

Ten lakh ninety thousand nine hundred nine

In numerals it can be written as,

$10,90,909$

Read the number:

$76,987$

0%
Seventy six thousand nine eighty seven.
0%
Seventy seven thousand nine eighty seven.
0%
Seventy six thousand nine hundred eighty seven.
0%
Seventy six thousand ninety eight hundred seven.

Explanation

$76,987$ reads as Seventy six thousand nine hundred eighty seven.

$7$ is at ten thousand's place,

$6$ at thousand's place,

$9$ at hundred's place and so on.

Write in numerals:
Ninety thousand nine hundred nine.

0%
$90,0009$
0%
$90,879$
0%
$90,909$
0%
$90,000$

Explanation

Number

$=$ Ninety thousand

$+$ nine hundred

$+$ nine

$=90,000+900+9$

$=90,909$

A three digit number from the given digits

$2, 5, 7,9$ which divisible by 2.

0%
$257$
0%
$925$
0%
$527$
0%
$752$

Explanation

Consider the given digits.

$2, 5, 7, 9$

If a number which is divided by

$2$ , then the units digit must be even.

So, from the given options there is only one option which has unit digit

$2$ .

Hence, the three digit number will be

$752$ .

Hence, this is the answer.

Round off

$7065$ to nearest

$1000$

0%
$700$
0%
$7000$
0%
$70$
0%
$7$

Explanation

Rounding off

$7065$ to nearest

$1000$ we check if

$065$ is less than

$500$ or not,

$065 < 500$ , we round it off to

$000$

$\therefore 7065$ to nearest

$1000$ equals

$7000$

CBSE Questions for Class 6 Maths Knowing Our Numbers Quiz 3 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

CBSE Questions for Class 6 Maths Knowing Our Numbers Quiz 3 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

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