MCQ Questions for Class 8 Math Chapter 7 Cube and Cube Roots with Answers

 Here you get NCERT MCQ Questions for Class 8 Math Chapter 7 Cube and Cube Roots with Answers Pdf free download.In MCQ Question for Class 8 Maths with Answers you get question-answer based on latest exam pattern. By providing Cube and Cube Roots Class 8 Math MCQs Questions with Answers our target to help students get concept of the lesson very well.

You can also visit NCERT MCQ Questions for Class 8 Math Chapter 7 Cube and Cube Roots with Answers to revise your syllabus thoroughly and enhance the chances of securing high marks in your board exams. It also help in your Cube and cube Roots Class 8 online test, online exam for admission well.
 
 MCQ Questions for Class 8 Math Chapter 7 Cube and Cube Roots with Answers

Choose the correct option from the following:
Question 1.   The cube of every even numbers is
(a) odd number
(b) even number
(c) decimal number
(d) none of the above
Answer: (b) even number.

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Question 2. The cube of every odd numbers is
(a) odd number
(b) even number
(c) decimal number
(d) none of the above
Answer: (a) odd number.
 

Question 3. The cube of every negative integer is always
(a) positive
(b) negative
(c) some time positive and some time negative
(d) none of the above
Answer: (b) negative.
 

Question 4. How many digits are there in the cube root of 13824
(a) one
(b) two
(c) three
(d) four
Answer: (d) four; cube root of 13824 is 24
 

Question 5. What will be the unit digit of cube root of a number 32768
(a) 1
(b) 2
(c) 3
(d) 4
Answer:  (b) 2. because the cube root of the number 32768 is 32
 

Question 6. What will be the one's place (unit place) digit of a cube of the number 23
(a) 3
(b) 8
(c) 9
(d) 0
Answer: (c) 9
because the one's place digit of 23 is 3 and we know the cubing the  one's place digit will determine the end digit of the cube number. Here in case of 23, cube of 3 = 9
 

Question 7. Which is the perfect cube of the following numbers
(a) 220
(b) 200
(c) 224
(d) 216
Answer: (d) 216
because cube of 6 = 216
 

Question 8. Which is the perfect cube among the following numbers
(a) 8000
(b) 7000
(c)6000
(d) 5000
Answer: (a) 8000
Because 20 x 20 x 20 = 8000
 

Question 9. Which of the following is the perfect cube
(a) 1
(b) 2
(c) 3
(d) 4
Answer: (a) 1
because 1x1x1=1
 

Question 10. Which is the following number is the perfect cube
(a) 5
(b) 6
(c) 7
(d) 8
Answer: (d) 8
because 2x2x2=8
 

Question 11. One's place (units place) digit of the cube of the number 264 is
(a) 2
(b) 4
(c) 6
(d) 8
Answer: (b) 4
because cube of one's place digit that is 4x4x4=64

MCQ Questions for Class 8 Math Chapter 7 Cube and Cube Roots with Answers

Question 12. The one's place (unit place) digit of the cube of 201 is
(a) 1
(b) 2
(c) 3
(d) 4
Answer: (a) 1
because 1x1x1=1
 

Question 13. The one's place (unit place) digit of the cube of number 402 is
(a) 0
(b) 8
(c) 7
(d) 9
Answer: (b) 8
because 2x2x2=8
 

Question 14. The one's place (unit place) digit of the number 110 is
(a) 5
(b) 8
(c) 0
(d) 3
Answer: (c) 0
because 0x0x0=0
 

Question 15. The  one's place (unit place) digit of the cube of the number 25 is
(a) 8
(b) 5
(c) 6
(d) 4
Answer: (b) 5
because 5x5x5=125
 

Question 16. The one's place (unit place) digit of the cube of the number 36 is
(a) 9
(b) 8
(c) 7
(d) 6
Answer: (d) 6
because 6x6x6=216
 

Question 17. The one's place (unit place) digit of the cube of the number 77 is
(a) 9
(b) 8
(c) 7
(d) 6
Answer: (a) 9
because 7x7x7=343
 

Question 18. The one's place or unit place digit of the cube of the number 88 is
(a) 5
(b) 7
(c) 2
(d) 0
Answer: (c) 2
because 8x8x8=512
 

Question 19. The one's place or unit place digit of the cube of the number 119 is
(a) 5
(b) 1
(c) 9
(d) 0
Answer: (b) 1
because 9x9x9= 729
 

Question 20. Write the smallest number by which 3456 is multiplied, the number become perfect square.
(a) 1
(b) 2
(c) 3
(d) 4
Answer: (d) 4
because 3456= 2×2×2×3×3×3×4×4=2³×3³×4²
 

Question 21. Write the smallest number by which when 320 is divided, number become perfect cube
(a) 3
(b) 4
(c) 5
(d) 6
Answer: (c) 5
Because 320= 4×4×4×5=4³×5
 

Question 22. Write the smallest number by which when 100000 is multiplied, the number become perfect cube
(a) 10
(b) 1
(c) 100
(d) 1000
Answer: 10
because 100000=10×10×10×10×10= 10³×10²
 

Question 23. Write the smallest number by which when 10000 is divided, the number become perfect cube
(a) 100
(b) 10
(c) 1
(d)0
Answer: (b) 10
because 10000=10×10×10×10=10³×10
 

Question 24. The smallest number by which when 500 is multiplied, the number become perfect cube
(a) 10
(b) 100
(c) 1
(d) 2
Answer: 2
because 500=5×5×5×2×2=5³×2²
 

Question 25. Write the smallest number by which when 125 multiplied the number become perfect cube
(a) 4
(b) 10
(c) 1
(d) 3
Answer: (c) 1
because 125=5×5×5=5³
 

Question 26. Write the cube root of 74088
(a)40
(b) 42
(c) 45
(d) 50
Answer: 42
 because 74088=2×2×2×3×3×3×7×7×7
 

Question 27. Write the number of zeros in cube of 20
(a) 1
(b) 3
(c) 5
(d) 6
Answer: 3
because 20³= 8000
 

Question 28. Write the value of 5׳√8000
(a) 50
(b) 70
(c) 90
(d) 100
Answer: (d) 100
because 5× ³√8000 = 5 × 20= 100
 

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