Page 36 - Concepts of Reasoning-8
P. 36
CHAPTER
Worksheet-4.1 cube roots 4
Cube Roots
1. Write the missing steps in the following calculation of cube roots :
a. 2 74088 b. 5 42875 c. 2 46656
2 37044 5 8575 2 23328
2 18522 2 11664
3 9261 2 5832
3 3087 49 2916
1029 7
243
3 9
3
3
3
74088 = 2 × × × 42875= × × 46656 = 2 × × ×
2. Fill in the blanks :
a. The cube root of 2744 is __________ .
729
b. The value of 3 is __________ .
216
c. The value of 3 (1728 × 64) is __________ .
d. The cube root of 314432 is __________ .
e. The number of digits in the cube root of 6859 is __________ .
3. State True (T) or False (F) :
a. The number of digits in the cube root of 1728000 is 3.
3
b. 704969 = 79
c. 3 (2744 × 1331) = 154
4096
d. = 2
3
512
e. The cube root of 5832 is 24.
36 Reasoning - 8
