1) What are squares? a) x is raised to the power of 5  b) x is raised to the power of 8 c) x is raised to the power of 2 d) all are correct 2) What is the square of 18? a) 490 b) 324 c) 528 d) none of the above 3) A perfect square number can never end with digits- a) 2,3,7,8 b) 1,4,9,0 c) 10,5,6,7 d) 9,2,5,3 4) Which of the following will have 6 at unit place? a) 19^2 b) 11^2 c) 13^2 d) 24 ^2 5) If 5278 is squared, then what will be at unit place? a) 8 b) 6 c) 4 d) 7 6) How many natural numbers lie between 9^2 and 10^2? a) 17 b) 18 c) 19 d) 20 7) The value of 9^2 – 1 is equal to: a) 80 b) none of the above c) 81 d) 79 8) The square of 42 is: a) 1504 b) 1564 c) 1664 d) 1764 9) Which of the following is a perfect square? a) 32 b) 81 c) 66 d) 101 10) What will be the number of zeros in square of 400? a) 2 b) 3 c) 4 d) 6

Square and Square Roots

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