Std 8

NCERT Solutions Class 8 Maths Chapter 6 Cubes and Cube Roots Exercise 6.2

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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NCERT Solutions Class 8 Maths Chapter 6 Cubes and Cube Roots Exercise 6.1

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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NCERT Solutions Class 8 Maths Chapter 5 Squares and Square Roots Exercise 5.3

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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NCERT Solutions Class 8 Maths Chapter 5 Squares and Square Roots Exercise 5.2

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 …

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NCERT Solutions Class 8 Maths Chapter 4 Data Handling Exercise 4.2

Data Handling   Exercise 4.2 1). List the outcomes you can see in these experiments. (a) Spinning a wheel          (b) Tossing two coins together Solution: (a) Spinning a wheel   Possible outcomes = {  A, B, C, D, E }   (b) Tossing two coins together Possible outcomes = { HH, HT, TH, TT }  …

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NCERT Solutions Class 8 Maths Chapter 3 Understanding Quadrilaterals Exercise 3.4

Understanding Quadrilaterals Exercise 3.4 1). State whether True or False. (a) All rectangles are squares (b) All rhombuses are parallelograms (c) All squares are rhombuses and also rectangles (d) All squares are not parallelograms. (e) All kites are rhombuses. (f) All rhombuses are kites. (g) All parallelograms are trapeziums. (h) All squares are trapeziums. Answer: …

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NCERT Solutions Class 8 Maths Chapter 3 Understanding Quadrilaterals Exercise 3.3

Understanding Quadrilaterals Exercise 3.3 1). Given a parallelogram ABCD. Complete each statement along with the definition or property used. (i) AD = …… (ii) Ð DCB = …… (iii) OC = …… (iv) m Ð DAB + m Ð CDA = …… Answer: (i) AD = BC The opposite sides of a parallelogram are congruent. (ii) …

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NCERT Solutions Class 8 Maths Chapter 2 Linear Equations in One Variable Exercise 2.2

Linear Equations in One Variable Exercise: 2.1 Solve the following linear equations. 1).   2).  3).  4). 5). 6). Simplify and solve the following linear equations. 7). 3(t – 3) = 5(2t + 1) 8). 15(y – 4) –2(y – 9) + 5(y + 6) = 0 9). 3(5z – 7) – 2(9z – 11) …

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NCERT Solutions Class 8 Maths Chapter 2 Linear Equations in One Variable Exercise 2.1

Linear Equations in One Variable Exercise: 2.1 Solve the following equations and check your results. 1). 3x = 2x + 18      3x – 2x = 18                  transposing 2x to LHS        x = 18   2). 5t – 3 = 3t – 5      5t – 3t = – 5 + 3      2t …

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