Back

Estimation | O Level Mathematics 4024 & IGCSE Mathematics 0580 | Detailed Free Notes To Score An A Star (A*)

Views 0
  • When it comes to estimation
  • In the paper, what he wants is as follows
    • He will give you very unique values, what you need to do is to round them up or round them down to make it easier to calculate without a calculator.
    • For example, if I ask you 0.018952 * 20015, you can make it easier to approximate or provide a guess of the answer by simply doing the following
      • Bring it to 0.02*20000
      • Now, it can be calculated easily
      • 400 is the answer
  • No real complexity
    • In the exam, just check the number of significant figures he wants the estimation to be in
    • Often he will tell a different number of significant figures for the estimation process and the final answer, so be carefull
    • No other rocket science in this question.
Hunain Zia

Hunain Zia has previously achieved considerable success in the high-school educational stream, gaining a massive 154 Total A Grades and 7 Major Distinctions, a process in which he broke/ set 11 different world records, including the most A grades ever achieved, most subjects ever appeared in, most distinctions, gaining distinctions across two separate boards (Pearson Edexcel and CAIE) within the same year/ ever, and even 19 hours of constant examination. All records stand intact today. Hunain pursued his Honors Accounting Degree from the prestigious Bentley University, and then completed an LLB (in Honors) from University of London. Currently, he manages multiple social and commercial projects, has founded digital streams and works tirelessly in the education sector.

Educate A Change focuses on truly bringing change in the educational sector worldwide. All our courses are designed to ensure success, and provide complete preparation without requiring any other external material. Therefore, it takes away the expense of academies, books, past paper compilations and other miscellaneous items. Instead, by just the courses we offer, the student can prepare fully for the best grades in their CAIEs, Edexcel and other high-school exams. The earnings from our course-sales are invested in social projects and growing the free educational activities of Educate A Change.