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Published on: 24/10/2025
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Questions + Answers key
Take MCQ Mathematics Test
1.
Use the following digits without repetition and make the greatest and smallest 4-digit numbers
2,8,7,4
2.
Arrange the numbers 819, 5240, 890, 6249 in descending order.
3.
Make the greatest and the smallest 4-digit numbers by using anyone digit twice. 8, 5, 1.
4.
Make the greatest and the smallest 4-digit numbers by using anyone digit twice. 0, 4, 9.
5.
Make the greatest and the smallest 4-digit numbers by using anyone digit twice. 9, 0, 5.
6.
Read these numbers. Write them using placement boxes and then write their expanded forms.
(i) 475320 (ii) 9847215 (iii) 97645310 (iv) 30458094
(a) Which is the smallest number?
(b) Which is the greatest number?
(c) Arrange these numbers in ascending and descending orders.
7.
Read and expand the numbers wherever there are blanks.
| Number | Number name | Expansion |
| 20000 | Twenty thousands | 2 \(\times\)10,000 |
| 26000 | Twenty six thousands | 2 \(\times\)10,000+6 \(\times\)1,000 |
| 38400 | Thirty eight thousands four hundreds | 3\(\times\)10,000+8 \(\times\)1,000+4\(\times\)100 |
| 65740 |
Sixty five thousands seven hundreds forty |
6\(\times\)10,000+5\(\times\)1,000+7\(\times\) 100+4\(\times\) 10 |
| 89324 | Eighty nine thousands three hundreds twenty four | 8\(\times\)10,000+9\(\times\)1,000+3\(\times\) 100+2\(\times\) 10+4\(\times\)1 |
| 50000 | ||
| 41000 | ||
| 47300 | ||
| 57630 | ||
| 29485 | ||
| 29085 | ||
| 20085 | ||
| 20005 |
8.
The population of Pune was 2538473 in 2001. Rounded off to nearest thousands, the population was-----
9.
The number 60 in roman numeral is------
10.
(a) 1m =--- mm (b) 1 cm =----- mm
11.
1 million = ____ lakhs
12.
1 crore = ____ millions
13.
Using the digits 3, 5, 7, 0 without repetition the greatest 4-digit number that can be made is
7530
7503
7350
7305
14.
Using the digits 1, 5, 7, 2 without repetition, the greatest 4-digit number that can be made is
7521
7512
7215
7251
15.
Using the digits 1,2,3,4 without repetition, the greatest 4-digit number that can be made is
4321
4312
4213
4231
16.
In Indian system of numeration, the number 58695376 is written as
58,69,53,76
58,695,376
5,86,95,376
586,95,376
17.
Which of the following is true?
1 million = 1000000
1 lakh = 10000
1crore=100000000
18.
The numbers 4578,4587,5478,5487 are in ascending order.
19.
LXXV is greater than LXXIV.
20.
The number 58663 rounded off to nearest hundred is 58600.
21.
531 = DXXXI
22.
34984 = 3 \(\times\) 1000 + 49 \(\times\) 100 + 8 \(\times\) 10 + 4 \(\times\) 1
23.
Write the greatest 7-digit number and the smallest 8-digit number.
24.
Write down the greatest 6-digit number and the smallest 7-digit number.
25.
Try this with 391 as well.
26.
Which is the smallest number?
27.
What is the greatest number, you can get?
1.
For getting the smallest number, firstly we convert the numbers into ascending order.
The smallest 4-digit number is 2478.
For getting greatest number, firstly we convert the numbers into descending order.
The greatest 4-digit number is 8742.
2.
Given, numbers are 819, 5240, 890 and 6249.
To convert numbers into descending order, we arrange numbers greatest to the smallest.
Now, descending order is 6249 > 5240> 890> 819.
3.
Given digits are 8, 5 and 1.
Here, descending order of the given digits is 8, 8, 5, 1. [∴ greatest digit 8 is taken twice]
∴ Greatest 4-digit number = 8851
and ascending order of the given digits is 1, 1, 5, 8. [∴ smallest digit 1 is taken twice]
∴ Smallest 4-digit number = 1158.
4.
Given digits are 0, 4 and 9.
Here, descending order of the given digits is 9, 9, 4, 0. [∵ greatest digit 9 is taken twice]
∴ Greatest 4-digit number = 9940
and ascending order of the given digit is 0, 0, 4, 9. [∵ smallest digit 0 is taken twice]
But 0049 is a 2-digit number, because 0 at first two leftmost places is meaningless. So, keeping 4 (instead of 0) at the leftmost place and taking the smallest digit o twice, we get 4009.
∴ Smallest 4-digit number = 4009.
5.
Given digits are 9, 0 and 5.
Here, descending order of the given digits is 9, 9, 5, 0. [∵ greatest digit 9 is taken twice]
∴ Greatest 4-digit number = 9950
and ascending order of the given digits is 0,0, 5, 9. [∵ smallest digit 0 is taken twice]
But 0059 is a 2-digit number, because 0 at first two leftmost places is meaningless. So, keeping 5 (instead of 0) at the leftmost place and taking the smallest digit o twice i.e. 5009.
∴ Smallest 4-digit number = 5009
6.
After reading these numbers, we have
(i) 475320 Four lakhs seventy five thousands three hundred twenty.
(ii) 9847215 Ninety eight lakhs forty seven thousands two hundreds fifteen.
(iii) 97645310 Nine crores seventy six lakhs forty five thousands three hundreds ten.
(iv) 30458094 Three crores four lakhs fifty eight thousands ninety four.
The placement boxes is shown as below:
| Number | Crores | Ten lakhs | Lakhs | Ten thousands | Thousand | Hundreds | Tens | Ones |
| 475320 | - | - | 4 | 7 | 5 | 3 | 2 | 0 |
| 9847215 | - | 9 | 8 | 4 | 7 | 2 | 1 | 5 |
| 97645310 | 9 | 7 | 6 | 4 | 5 | 3 | 1 | 0 |
| 30458094 | 3 | 0 | 4 | 5 | 8 | 0 | 9 | 4 |
Expanded forms of given numbers are as follow:
(i) 475320 = 4 \(\times\)100000 + 7 \(\times\) 10000 + 5\(\times\) 1000 + 3 \(\times\) 100 +2\(\times\)10+ 0 \(\times\) 1
(ii) 9847215 = 9 \(\times\) 1000000 + 8 \(\times\) 100000 + 4 \(\times\) 10000 + 7 \(\times\) 1000 + 2 \(\times\) 100 + 1 \(\times\)10 + 5 \(\times\) 1
(iii) 97645310 = 9 \(\times\) 10000000 + 7 \(\times\) 1000000 + 6 \(\times\) 100000 + 4 \(\times\) 10000 + 5 \(\times\) 1000 + 3 \(\times\) 100 + 1 \(\times\) 10 + 0 \(\times\)1
(iv) 30458094 = 3\(\times\) 10000000 + 4 \(\times\) 100000 + 5 \(\times\) 10000 + 8 \(\times\) 1000 + 0 \(\times\) 100 + 9\(\times\) 10 + 4 \(\times\) 1
(a) The smallest number = 475320
(b) The greatest number = 97645310
(c) Ascending order of given numbers are as follow:
475320 < 9847215 < 30458094 < 97645310
Descending order of given numbers are as follow:
97645310> 30458094 > 9847215> 475320.
7.
The remaining blanks are shown as below with appropriate number, name and expansion:
| Number | Number name | Expansion |
| 50000 | Fifty thousands | 5 \(\times\) 10,000 |
| 41000 | Forty one thousands | 4 \(\times\) 10,000 + 1 \(\times\) 1,000 |
| 47300 | Forty seven thousands three hundreds | 4\(\times\)10,000 + 7 \(\times\) 1,000 + 3 \(\times\) 100 |
| 57630 | Fifty seven thousands six hundreds thirty | 5 \(\times\) 10,000 + 7 \(\times\) 1,000 + 6 \(\times\) 100 + 3\(\times\)10 |
| 29485 | Twenty nine thousands four hundreds eighty five | 2 \(\times\)10,000 + 9\(\times\) 1,000 + 4 \(\times\) 100 + 8 \(\times\) 10 + 5 \(\times\) 1 |
| 29085 | Twenty nine thousands eighty five | 2 \(\times\) 10,000 + 9 \(\times\) 1,000 +8 \(\times\)10+ 5 \(\times\) 1 |
| 20085 | Twenty thousands eighty five | 2\(\times\)10,000 + 8 \(\times\) 10 + 5 \(\times\) 1 |
| 20005 | Twenty thousands five | 2 \(\times\) 10,000 + 5 \(\times\) 1 |
8.
Given population is 2538473.
Rounded off to nearest thousands = 2538000
9.
Here, given number is 60 i.e. LX.
10.
( )
(a) 1 m =1000 mm (b) 1 cm =10 mm
11.
We know that,
1 million = 1000000 (in digits)
= 10 \(\times\)100000 = ten \(\times\) one lakhs (in number name)
∴1 million = ten lakhs
12.
We know that,
1 crore = 10000000 (in digits) = 10 \(\times\) 1000000
= ten \(\times\) one million (in number name)
∴ 1 crore = ten millions
13.
(a)
7530
14.
(a)
7521
15.
(a)
4321
16.
(b)
58,695,376
17.
(a)
1 million = 1000000
18.
(a)
19.
(a)
20.
(b)
21.
(a)
22.
(b)
23.
( )
The greatest 7-digit number is 99,99,999 and the smallest 8-digit number is 100,00,000 (called one crore).
24.
( )
The greatest 6-digit number is 9,99,999 and the smallest 7-digit number is 10,00,000 (called ten lakh).
25.
( )
It could become as large as 931 and as small as 139.
26.
( )
The smallest number is 3578.
27.
( )
The greatest number we can get is 8753.
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