Solutions - Multiple Choice Type Questions (MCQ's) - Number System - Selina Concise Mathematics - Middle School - Class 6.
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📂 Chapter 1 - Multiple Choice Type Questions.
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-- Multiple Choice Type --
# Choose the correct answer from the options given below.
Q1. The sum of place value of two 3s in the number 73423 is :
(i) 76423
(ii) 73426
(iii) 3003 ✅
(iv) none of these
Q2. 53729 is greater than 53972 :
(i) true
(ii) false ✅
(iii) none of these
Q3. The difference between the largest and the smallest 3-digit numbers is :
(i) 10,000
(ii) 899 ✅
(iii) 1,099
(iv) none of these
Q4. The number of two digit numbers from 40 to 70 is :
(i) 30
(ii) 31 ✅
(iii) 29
(iv) none of these
Q5. If A = 83, B = 12 and C = 17, the value of A - B + C is :
(i) 54
(ii) 112
(iii) 88 ✅
(iv) none of these
Q6. 3,294 + 1,320 to the nearest 10 is :
(i) 4,430
(ii) 4,420
(iii) 4,426
(iv) none of these ✅
Q7. The difference between 652 and 4,038 to the nearest hundred is :
(i) 3,300 ✅
(ii) 3,400
(iii) 3,390
(iv) 3,350
Q8. 2,228 rounded off to the nearest hundred minus 228 to the nearest ten is :
(i) 1,790
(ii) 1,970 ✅
(iii) 2,170
(iv) 2,220
Q9. Sum of digits 3 and 8 used in the numbers 5,03,489 is :
(i) 3,800
(ii) 3,030
(iii) 11 ✅
(iv) none of these
Q10. 80 is multiplied with 23 instead of 32; the result of multiplication differs by :
(i) 80 x (23 - 32)
(ii) 720 ✅
(iii) 80 x 32-23
(iv) none of these
Q11. Statement 1 : The smallest number of 6-digit using only first three digits is 100022.
Statement 2 : To get the largest number, using the given digits, the largest digit is written at the right most and then the remaining digits are written in descending order of their values to the right.
Which of the following options is correct ?
(i) Both the statements are true.
(ii) Both the statements are false.
(iii) Statement 1 is true, and statement 2 is false.
(iv) Statement 1 is false, and statement 2 is true
Explanation :
For statement 1 : The first three digits are 0, 1 and 2 and so the smallest 6-digit number formed is 100002.
[The given statement is false].
For statement 2 : The given statement is false.
The largest digit is placed at the left most and then the other digits are written in descending order of their values to the right. [The given statement is false]
Ans. (ii) Both the statements are false.
Q12. The numbers 25, 42 and 63, also 25 - 42 + 63.
Statement 1 : 25 - 42 + 63 before rounding off the given numbers = 88 - 42 = 46 = 50
Statement 2 : After rounding off the given numbers; 25 - 42 + 63 = 30 - 40 + 60 = 50
(i) Both the statements are true.
(ii) Both the statements are false.
(iii) Statement 1 is true, and statement 2 is false.
(iv) Statement 1 is false, and statement 2 is true. ✅
Q13. Number 89623
Assertion (A) : The sum of place values of digits 6 and 2 is 620.
Reason (R) : The required sum = 600 + 2 = 602.
(1) A is true, R is false.
(2) A is false, R is true.
(3) Both A and R are true.
(4) Both A and R are false.
(i) 1 ✅
(ii) 2
(iii) 3
(iv) 4
Q14. Assertion (A) : In the number 709 , the sum of place value and face value of 0 is 0.
Reason (R) : The place value of a digit depends upon the position it occupies in the number, however the face value of a digit is always the digit itself regardless of the place it occupies in the given number.
(1) A is true, R is false.
(2) A is false, R is true.
(3) Both A and R are true.
(4) Both A and R are false.
(i) 1
(ii) 2
(iii) 3 ✅
(iv) 4
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