Class -8th (Mathematics) Assignment 1. Which of the following are squares of even numbers a.82601 b. 625 c.1444 d. 1600 2. Number of digit in the square of the following a.9 b.1386 c.85 d.125 3.Which of the following are perfect squares a.3135 b.7921 c.44100 d.961000 4.Find the possible digit at ones place in the square root of the number having the following digits at the their units places. a.4. b.1 c.5. d.9 5.Find the square of each of the following numbers using column method:- a.41 b 56 c.39 d.72 6.Find the square of each of the following numbers using diagonal method:- a.6084 b.132 c.325 d. 105 7.Find the square root of each of the following numbers using their ones and tens digit a.6084 b.1296 c.324 d.625 8.Find the V each of the following numbers by prime factorization a 15625 b.6724 c.153756 d.1225 9.Find the value of squareroot of each of the following a.289/529 b.900/1296 c.5 25/400 10.Find the √ of the following numbers a.1.44 b.1.0201 c.0.81 d.0.01 11.Find the least number which must be subtracted from 1 to 514 to make it a perfect square. 12.What list number should be added to 17940 to make it a perfect square. 13.Find the greatest number of 8 digits which is a perfect square. 14.Which of the following numbers are not perfect cubes:- a.46656 b.5836 c.91125. d.1872 15.Find the cube root using prime factorization method a.97336 b.2197000 c.1030301 d.32768 16.Find the cube root of the following numbers:- a.0.512 b.00.000001 c.216/1.331 d.343/125 17.Find the least number by which 4394 should be divided to make it a perfect cube. 18.Find the smallest number by which one 4739 should be multiplied to show that the product becomes a perfect cube. 19.Volume of a cube is 9.261 cubic cm. Find the side of the cube. 20.How much is (%)³-(%)³=? 21.What is the value of (-0.13)³? 22. Find the value of (128x-4)% 23.Find the value of (0.4)+(0.1)³ 24.Find the value of (64)x(125)% 25.Evaluate the value(21613). 26.Find the multiplicative inverse of the following:- a.-7/6 b.-6x1/4 c.(18/5)x5 27 Absolute value of each of the following:- a.14/8 x -3/71 b.1-6/11+ -3/22
