Squares and Square Roots Questions and Answers - Form 1 Topical Mathematics

Questions

1. Use tables to find;
   1.  
      1. 4.978²
      2. The reciprocal of 31.65
   2. Hence evaluate to 4.S.F the value of
      4.978² – ¹/_31.65
2. Use tables of squares, square roots and reciprocals to evaluate correct to 4 s.f
   
3. Without using mathematical tables or calculator, evaluate:  
   
   giving your answer in standard form

Answers

1.  
   1.  
      1. 24.78
      2. 0.0316
   2. 24.78 – 0.0316 = 24.75
2. 
   
   3 x 8.575 – 2 x 0.07224
   = 25.725 - 0.14448
   = 25.58052
   = 25.58
3.