Exam-Style Question on Error Bounds
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 513. This question is similar to one that appeared on a GCSE Higher paper in 2019. The use of a calculator is allowed.
Ralph used his calculator to work out the value of C, the circumference of a circle. Unfortunately he put his banana down on his desk so that it covered most of the calculator screen. All that can be seen are the first two digits of the answer.
Complete the error interval for C$$. . . . . . . . . . \le C \lt . . . . . . . . . .$$
The worked solutions to these exam-style questions are only available to those who have a Transum Subscription.
Subscribers can drag down the panel to reveal the solution line by line. This is a very helpful strategy for the student who does not know how to do the question but given a clue, a peep at the beginnings of a method, they may be able to make progress themselves.
This could be a great resource for a teacher using a projector or for a parent helping their child work through the solution to this question. The worked solutions also contain screen shots (where needed) of the step by step calculator procedures.
A subscription also opens up the answers to all of the other online exercises, puzzles and lesson starters on Transum Mathematics and provides an ad-free browsing experience.
Drag this panel down to reveal the solution
If you need more practice try the self-checking interactive exercises called Upper and Lower Bounds.
©1997 - 2023 Transum Mathematics :: For more exam-style questions and worked solutions go to Transum.org/Maths/Exam/