Using the method of successive subtraction examine whether or not the following numbers are perfect cubes: 130      (ii) 345      (iii) 792                (iv)  1331

using the method of successive subtraction examine whether or not the following numbers are perfect cube (i) 130 (ii) 345 (iii) 792 (iv) 1331 Find the smallest number that must be subtracted from those of the numbers in above question which are not perfect cubes, to make them perfect cubes. What are the corresponding cube roots?

Which of the following numbers are not perfect cubes? 1331

By subtraction of successive odd numbers find whether the following numbers are perfect squares or not :55

By subtraction of successive odd numbers find whether the following numbers are perfect squares or not :90.

By subtraction of successive odd numbers find whether the following numbers are perfect squares or not : 121.

Which of the following numbers are not perfect cubes ? (I)64 (ii) 216 (iii) 243 (iv) 1728

Which of the following numbers are not perfect cubes ? (I)64 (ii) 216 (iii) 243 (iv) 1728

Using the method of successive subtraction (numbers: 1, 7, 19, 37, 61, 91, 127, 169, 217, 271, 331, 397,…) examine whether or not the following numbers are perfect cubes: 130 (ii) 345 (iii) 792 (iv) 1331

Which of the following are perfect cubes? (I)1000 (ii) 1728 (iii) 3087

Which of the following are perfect cubes? (I)1000 (ii) 1728 (iii) 3087