## MCQ on Number Play Class 6

### Class 6 Maths Chapter 3 MCQ Number Play

I. Multiple Choice Questions

Question 1.

The greatest 5-digit number using the digit 3, 1, 0:

(a) 10003

(b) 33310

(c) 33333

(d) 33301

Answer:

(b) 33310

Question 2.

The 5-digit palindrome number using the digits 2, 5, 4 is

(a) 22254

(b) 55542

(c) 25452

(d) 44522

Answer:

(c) 25452

Question 3.

Which of the following is the smallest three digit number that does not change even if the digits are written in reverse order?

(a) 110

(b) 101

(c) 330

(d) 909

Answer:

(b) 101

Question 4.

The sum of the smallest and largest 2-digit palindrome is:

(a) 88

(b) 90

(c) 101

(d) 110

Answer:

(d) 110

II. Objective Type Questions

Question 5.

Choose the correct answer for each of the following:

(i) The smaller number whose digit sum is 15 is __________ [960000/000015]

Answer:

9,60,000

(ii) 25,000 + 400 × 2 + 13,000 + 400 ÷ 2 = ________ [38,000/39,000]

Answer:

39,000

Question 6.

Fill in the blanks:

(i) Write the smallest digit in the blank space, so that the digit sum is an even number.

(a) 1111__

(b) 4443__

Answer:

(a) 0

(b) 1

(ii) Total number of 4-digit numbers is _____________

Answer:

9000

III. Fun Activity

Question 7.

Complete the following crossword puzzle:

Directions:

Across:

(1) Digit sum of 154 is _____________

(2) The Kaprekar constant is based on ________ digit number.

(3) The Kaprekar constant is the number _____________

Down:

(4) How many numbers have 2-digit?

(5) When we read the number from left to right or right to left we get the same number. This type of number is called _____________ number.

(6) The difference between the greatest and the smallest number using the digit 0, 6, 3, 9, _____________

Answer:

Across

(1) 10

(2) Four

(3) 6174

Down

(4) 90

(5) Palindromic

(6) 6561

Question 8.

**Puzzle**

I am a 4-digit palindromic number,

My ten’s digit is 3 more than my thousand’s digit,

My digit sum is 22.

What number am I?

Answer:

4774

IV. Answer the following.

Question 9.

Colour or mark the supercells in the table below.

596 | 451 | 265 | 104 | 105 | 106 | 107 | 109 | 108 | 210 |

Answer:

596 |
451 | 265 | 104 | 105 | 106 | 107 | 109 |
108 | 210 |

Question 10.

Complete the given table with 5-digit numbers whose digits are ‘1’, ‘0’, ‘4’, ‘3’, and ‘8’ in some order.

Only a shaded cell should have a number greater than all its neighbours.

Answer:

(i) The biggest number in the table is _____________

Answer:

84,310

(ii) The smallest odd number in the table is _____________

Answer:

10,483

(iii) The greatest number smaller than 50,000 in the table is _____________

Answer:

48,103

Question 11.

What is the smallest number whose digit sum is 11?

Answer:

29

Question 12.

Which number is called Kaprekar constant?

Answer:

6174

Question 13.

State which number is in left, middle and right on number line.

(i) 123, 234, 111

Answer:

Left – 111

Middle – 123

Right – 234

(ii) 10, 005; 10, 000; 00002

Answer:

Left – 00002

Middle – 10,000

Right – 10,005

Question 14.

Identify the numbers marked on the number lines below, and label the remaining positions.

Question 15.

**Case-Based Question**

Ankit and Sumit are playing different games based on number theory with a set of number cards having numbers 0 to 9.

Both of them have to pick 5 different cards each from the set of cards to make a number.

Based on this information answer the following questions:

(a) If Ankit makes a 5-digit number using his cards as follows:

And Sumit placed four of his cards as follows:

At which place Sumit place his remaining card so that he can make the greater number than Ankit?

Answer:

Remaining card of number 4

40579 > 31268

(b) If Sumit wants to select the 5 number cards that make the smallest number, whose digit sum is 22, then which number card will he choose?

Answer:

0, 1, 4, 8, 9; 10489

(c) If Ankit wants to select the 5 number cards that make the greatest number whose digit sum is 25, which number card does he must choose?

Answer:

9, 8, 7, 1, 0; 98710