A Square and a Cube Class 8 Fill in the blanks
easyA Square and a Cube Class 8 Fill in the blanks
A Square and a Cube Class 8 Fill in the blanks
Question 1.
The units digit in the square of 1294 is _____________.
Answer:
6
Question 2.
The square of 500 will have __________ zeroes.
Answer:
4
Question 3.
The square root of 24025 will have __________ digits.
Answer:
3
Question 4.
The square root of 5.3 × 5.3 is __________ .
Answer:
5.3
Question 5.
Ones digit in the cube of 38 is __________
Answer:
2
Question 6.
The cube of an odd number is always an _________ number.
Answer:
odd
Question 7.
The least number by which 72 be multiplied to make it a perfect cube is ____________ .
Answer:
3
Question 8.
Cube of a number ending in 7 will end in the digit ___________.
Answer:
3
A Square and a Cube Class 8 True or False
Question 1.
The sum of two perfect squares is a perfect square.
Answer:
False
Question 2.
The product of two perfect squares is a perfect square.
Answer:
True
Question 3.
The square root of 1521 is 31.
Answer:
False
Question 4.
For an integer a, a3 is always greater than a2.
Answer:
False
Question 5.
If a2 ends in 5, then a3 ends in 25.
Answer:
False
Question 6.
The cube of a one digit number cannot be a two digit number.
Answer:
False
A Square and a Cube Class 8 Match the Following
Question 1.
| Column I | Column II |
| (i) Numbers lying between squares of 25 and 26 | (a) 14 |
| (ii) Square root of 196 | (b) 7 |
| (iii) Number of digits in the square root of 15129 | (c) 20 |
| (iv) Unit digit in the cube of 103 | (d) 50 |
| (v) Cube root of 8000 | (e) 3 |
Solution:
(i) (d)
(ii) (a)
(iii) (e)
(iv) (b)
(v) (c)