Cubes And Cube Roots Exercise 6.2 1). Find the cube root of each of the following numbers by prime factorisation method. (i) 64 (ii) 512 (iii) 10648 (iv) 27000 (v) 15625 (vi) 13824 (vii) 110592 (viii) 46656 (ix) 175616 (x) 91125 Solution: (i) 64 64 = 2 X 2 …
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Cubes And Cube Roots Exercise 6.1 1). Which of the following are not perfect cubes? (i) 216 (ii) 128 (iii) 1000 (iv) 100 (v) 46656 Solution: (i) 216 216 = 2 X 2 X 2 X 3 X 3 X 3 216 = 2 X 2 X 2 X 3 X …
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Squares And Square Roots Exercise 5.4 1). Find the square root of each of the following numbers by Division method. (i) 2304 (ii) 4489 (iii) 3481 (iv) 529 (v) 3249 (vi) 1369 (vii) 5776 (viii) 7921 (ix) 576 (x) 1024 (xi) 3136 (xii) 900 Solution: (i) 2304 √2304 …
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Squares And Square Roots Exercise 5.3 1). What could be the possible ‘one’s’ digits of the square root of each of the following numbers? (i) 9801 (ii) 99856 (iii) 998001 (iv) 657666025 Solution: (i) 9801 The possible one’s digit of the square root of 9801 may be 1 or 9. …
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Squares And Square Roots Exercise 5.2 1). Find the square of the following numbers. (i) 32 (ii) 35 (iii) 86 (iv) 93 (v) 71 (vi) 46 Solution: (i) 32 32 = 30 + 2 (a+b)2 = a2 + 2ab + b2 322 = (30 + 2)2 = (30)2 + 2 X …
NCERT Solutions Class 8 Maths Chapter 5 Squares and Square Roots Exercise 5.2 Read More »
Squares And Square Roots Exercise 5.1 1). What will be the unit digit of the squares of the following numbers? (i) 81 (ii) 272 (iii) 799 (iv) 3853 (v) 1234 (vi) 26387 (vii) 52698 (viii) 99880 (ix) 12796 (x) 55555 Solution: (i) 81 The …
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