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Assignment for Class 8 Mathematics Chapter 7 Cubes And Cube Roots
Class 8 Mathematics students should refer to the following printable assignment in Pdf for Chapter 7 Cubes And Cube Roots in Class 8. This test paper with questions and answers for Class 8 Mathematics will be very useful for exams and help you to score good marks
Chapter 7 Cubes And Cube Roots Class 8 Mathematics Assignment
Q 1 Find the cube of 18.
Q 2 Express 63 as the sum of odd numbers using the pattern given below.
1 = 1 = 13
3 + 5 = 8 = 23
7 + 9 + 11 = 27 = 33
13 + 15 + 17 + 19 = 64 = 43
21 + 23 + 25 + 27 + 29 = 125 = 53
Q 3 Show that 189 is not a perfect cube.
Q 4 Find the number whose cube is 9261.
Q 5 Find the cube root of 512.
Q 6 Evaluate: (0.8)3
Very Short Answer type Questions
Question. What is the cube root of 0.001728?
Answer : 0.12
Question. A cubical box has a volume of 512000 cubic cm. What is the length of the side of box?
Answer : 80cm
Question. Find 13 + 23 + 33.
Answer : 36
Question. What is cube root of 1728?
Answer : 12
Question. Find the value of 3√0.729 x 3√1.331.
Answer : 0.99
Question. How many hundreds are there is 31 × 22 × 53?
Answer : 155
Question. Simplify and give the answer 3√216 x 3√729 / 3 x 9
Answer : 2
Question. Evaluate 3√100 x 3√270.
Answer : 30
Question. What is 3√400 x 3√49 x 3√140 ?
Answer : 140
Question. Simplify and give the answer in whole number 3√55 x 3√25 x 3√121.
Answer : 55
Question. Find 3√169 x 3√25 x 3√65.
Answer : 65
Question. What is the smallest number by which 9000 can be multiplied so that it becomes a perfect cube.
Answer : 3
Question. What is cube of 0.2.
Answer : 0.008
Q.1) Which of the following are the perfect cubes?
a) 729 b) 10000 c) 1729 d) 2817 e) 6859
Q.2) Which of the following are the cubes of odd number
a) 1331 b) 4096 c) 5832 d) 5000 e) 3375
Q.3) Is 343 or 243 a perfect cube?
Q. 4) By prime factorization find the cube roots of:
a) 3375 b) 74088 c) 10000 d) 11331
Q. 5) Find the cube root of 17576 through estimation.
Q. 6) Is 392 a perfect cube?
Q.7) Is 68600 a perfect cube? If not, find the smallest no. by which 68600 must be multiplied to get a perfect cube.
Q. 8) Is 53240 a perfect cube? If not, then by which smallest no. should 53240 be divided so that the quotient is a perfect cube?
Q. 9)Without finding the prime factors, estimate the cube roots of the following cubes.
a) 857375 b) 12167 c) 24389
Q.10) Find the cube root of 13824.
| CBSE Class 8 Mathematics Cubes and Cube Roots Assignment Set B |
| CBSE Class 8 Mathematics Cubes and Cube Roots Assignment Set F |
| CBSE Class 8 Mathematics Factorisation Assignment Set I |
CBSE Class 8 Mathematics Chapter 7 Cubes And Cube Roots Assignment
We hope you liked the above assignment for Chapter 7 Cubes And Cube Roots which has been designed as per the latest syllabus for Class 8 Mathematics released by CBSE. Students of Class 8 should download and practice the above Assignments for Class 8 Mathematics regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 8 Mathematics practice sheet in Pdf. All questions have been designed for Mathematics by looking into the pattern of problems asked in previous year examinations. You can download all Revision notes for Class 8 Mathematics also absolutely free of cost. Lot of MCQ questions for Class 8 Mathematics have also been given in the worksheets and assignments for regular use. All study material for Class 8 Mathematics students have been given on studiestoday. We have also provided lot of Worksheets for Class 8 Mathematics which you can use to further make your self stronger in Mathematics.
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