4MA1/1F Nov 2021, Question 11: Using a Calculator
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Use a calculator to evaluate (2.14³ − 3.76) ÷ √1.24, record the full display, then round that value to 2 significant figures.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Part (a) · 2 marks
Calculate (2.14³ − 3.76) ÷ √1.24 on a calculator and write every digit shown on the display.
- 1Top: 2.14³ − 3.76 = 9.800344 − 3.76 = 6.040344
- 2Bottom: √1.24 = 1.113552873…
- 36.040344 ÷ 1.113552873… = 5.424389042...
Answer5.424389042...
Part (b) · 1 mark
Given the answer 5.424389042…, write it correct to 2 significant figures.
- 15.424389042... ≈ 5.4
Answer5.4
Stuck on a step? Read the free lesson: Using a Calculator
Practise more using a calculator questions
Real 4MA1 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on using a calculator
Also searched as: 4MA1 1F November 2021 · 4MA1/1F · 4ma1 nov21 1f · question 11.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.