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Wednesday, May 8, 2019

Rational numbers, square roots and cube roots Set 2

Grade 8  Practice Test
(blog.infate.in)
(Rational numbers, square roots and cube roots)

Q1 Solve the following

 




Q2 Find the square root of the following

 
 
 
 
 

Q3 Estimate the value of following  to the nearest one decimal place

 
 

Q4 Find the five rational numbers between
 

Q5 Which of the following triplets are Pythagorean?

a)(3,4,5)
b)(6,7,8)

Q6 Find the least number which must be subtracted from 2509 to make it a perfect
square.

Q7 Find the least square number which is exactly divisible by each of the numbers 6,9,15 and 20.

Q8 Find the cube of the following

a)-2  b)0.4  c)1.2

Q9 Find the cube root of the following

 
 

Q10 Find the cube root of the following numbers through estimation

1) 10648
2) 91125

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