Exercise No. 1F

NOTE: Answers to all questions are given at the end of this exercise. Question No. 1: Estimate mentally the following: (a) 41² (b) 58² (c) 112² (d) 32³ (e) 39³ (f) 98³ (g) 198² (h) 301³   Question No. 2: Give an estimate of each of the following mentally: (a) √37 (b) ³√26 (c) √63 (d) ³√124 (e) √84 (f) √142 (g) ³√1004 (h) √897   Question No. 3: (a) 26² (b) 37² (c) 78² (d) 99² (e) 123² (f) 13³ (g) 29³ (h) 34³ (i) 643³ (j) 109³ (k) √961 (l) √2209 (m) √3481 (n) √11236 (o) √69169 (p) ³√4096 (q) ³√68921 (r) ³√314432 (s) ³√753571 (t) ³√1906624 (u) 18² + 11³ - √484 + ³√4913 (v) √676 x 9³ – 17² + √2704 (w) 24³ ÷ √4096 + ³√512 x 44² (x) ³√1331 x √2916 – 42³ ...

Exercise No. 1E

NOTE: Answers to all questions are given at the end of this exercise. Question No. 1: Find all the perfect squares that are between 50 and 150.   Question No. 2: Copy the following numbers and circle those that are perfect squares: 8, 16, 18, 25, 33, 49, 50, 72, 81, 100, 1, 125, 144, 200, 169, 111, 225, 400   Question No. ...