Check your answers seem right. Questions on Rounding for GCSE Solutions can be found at http://www.mathsnote.com Number; Algebra; Geometry; Statistics; Functional; Search; MATHS GAMES. 8,529 rounded to 2 significant figures is 8,500. Grade 8/9 Topics. Here, this is the 2nd decimal place. Rounding Numbers. Interactive Resources . View all Products, Not sure what you're looking for? Make sure you are happy with the following topics before continuing. Begin by counting from the first number greater than zero, until you have the number of figures that you need. Here it is the 2. Example: Round 0.04529 to 2 significant figures. Here, we are rounding to 2 decimal places so it is the 2nd digit after the decimal point we are interested in. 8, is our 2nd significant figure and thus is our cut-off digit. To 1 significant figure (1s.f) this would be 30000. Year 1 AS Pure; Year 2 A Level Pure; Extension Questions; New A level Applied. If the last digit is 9 then you need to put a zero in the last column and add 1 to the previous number. Here, we are rounding to 1 decimal place so it is the 1st digit after the decimal point we are interested in. Beat the clock; Find the primes; Key word countdown; Nasty negatives; Odd one out; Times tables dash; QUESTION BANK; FORMULAE; GLOSSARY; CONTACT; Worksheet - Rounding to significant figures. Further Maths; Practice Papers; Conundrums; Class Quizzes; Blog; About; Revision Cards; Books; August 29, 2019 corbettmaths. 0.04529 rounded to 2 significant figures is 0.045. If it's 5 or above write down the number but put your last decimal place up by one. Then, turning all the digits after the cut-off digit into 0‘s, we get. during a calculation, then the answer you get at the end may be incorrect, so  only round at the end of an answer, and not during a calculation, unless the question specifically asks you to. Past paper exam questions organised by topic and difficulty for AQA GCSE Maths. The cut-off point is after the 8 and before the 7. In many GCSE Maths exam questions you will be asked to round a number to a specified number of decimal places or significant figures. If we’re rounding to 2 decimal places, then the cut-off digit is before the 2nd decimal place, i.e. Step 3: All the digits after the cut-off point we ignore. A worksheet for practising the rounding of numbers to the nearest hundred. The method of rounding to a significant figure is often used as it can be applied to any kind of number, regardless of how big or small it is. Step 1: Identify the tens digit, here it will be the second 1, Step 2: Look at the digit after the tens column. Here, we are rounding to the nearest thousand so it is the 3rd digit we are interested in. Here this is after the 2nd significant figure. £3.69. Look at the next digit. Then look at the next digit along. Maths-Creator-QA TEACHER. For each of the 3 ways of rounding, if we are required to round up a 9, then we round the 9 to a 0 and increase the digit before it by 1 (carry the 1 to the left). Count the number of decimal places you need. If it is below 5, then we keep the cut-off digit the same. To round up or down we have to consider the value of the digit to its immediate right which in this case is 6. The 1st significant figure in this case is 2 and moving two places along we see that the 4 is the 3rd significant figure. In response to requests from others I have taken a look at a set of typical GCSE questions on rounding and estimation, and worked through the solutions. ).What you need to do:1. I Rounding Giving the complete number for something is sometimes unnecessary. Students then form groups of 2 or 3 and seelct a sheet with an estimating task, challenge levels vary between 1 and 3. However, as we are rounding up 9 to 10, we have to carry the 1 over to the units column, so we get, 55.099 rounded to 2 decimal places is 55.10. Question 5: Round 55.099 to 2 decimal places. However, as we are rounding up 9 to 10, we have to carry the 1 over to the units column, so we get. Past paper exam questions organised by topic and difficulty for Edexcel GCSE Maths. Click here for Answers . If you round numbers too early, i.e. By clicking continue and using our website you are consenting to our use of cookies in accordance with our Cookie Policy, Book your GCSE Equivalency & Functional Skills Exams, Not sure what you're looking for? Back to Top. Question 3: Round 0.02345 to 3 significant figures. Then look at the next digit, if its 4 or below just write the number down leaving the last digit the same. If it’s 4 or less then just write in the number with the correct amount of decimal places. Practice Questions; Post navigation. Exact Calculations (H) JustMaths GCSE Questions keyboard_arrow_up. Take quiz Explore GCSE practice questions by subject & exam board The cut-off point is between the 5 and the 2. If it is below 5, then we keep the cut-off digit (i.e. Here it is 2. Diagnostic Questions . rounding, estimation and checking > revision > gcse questions. If the last decimal to round is 5 or above, write in the number with the last decimal place up by 1. DrFrostMaths provides an online learning platform, teaching resources, videos and a bank of exam questions, all for free. Question 1: Round 560,180 to the nearest thousand. Showing top 8 worksheets in the category - Gcse Rounding And Estimation. Rich Tasks . Rounding Practice Questions Click here for Questions . Step 2: Look at the first digit after the cut-off point. Exam Style Questions Ensure you have: Pencil, pen, ruler, protractor, pair of compasses and eraser You may use tracing paper if needed Guidance 1. Rounding numbers, significant figures, decimal places, converting fractions to decimals, converting decimals to fractions, rational numbers, reciprocals, expansions of repeating decimals HIGHER FOUNDATION . Decimal PlacesOften you are asked to write an answer to a given number of decimal places (be careful to read the question properly! This sheet starts off with number line based questions to aid understanding of this important topic. The next significant figures immediately follows, and so on….. To do this simply count the number of decimal places required (in the examples below its 2). the number before the cut-off point) the same. So, in this case, the 9 goes to zero and the 3 before it becomes 4. Further Maths 1; Further Maths 2; Extension Questions; A Level Practice Papers 2019 Specs; Tuition; Select Page. As 9 is greater than 5, we round up. To round up or down we have to consider the value of the digit to its immediate right which in this case is 9. This is less than 5, so we round down and the cut-off digit stays the same. Rounding and estimating are two ways to make numbers easier to manage. Decimals GCSE Maths Tests. The first digit, 2, is in hundreds, but the second digit, 3, is in tens, so that will be our cut-off digit. If it’s 4 or less then just write in the number with the correct amount of decimal places. to the nearest 10, to 1 decimal place). Angles are rarely rounded to more than 1 decimal place. The 1st significant figure is 4 as the first 2 digits are zeros. This is easier than for decimal places and significant figures. New GCSE questions from AQA, Edexcel and OCR, Year 7 Baseline tests, Year 6 SATs Revision, Core 1 Collection, plus questions from Cambridge University Press, UKMT, Oxford University, and 1000s more created by teachers. Read each question carefully before you begin answering it. Username: Password: Register? For example 1.3721 – becomes 1.37 (as the following 2 is less than 5). ok here is the question: Estimate the answer to : (29.42 x 0.0941) / (15.2 x 8.42) I understand the question i just don't know how many decimal places to round it to...please talk me through it! Another way we may be asked to round a number is to a given number of significant figures (sf). Example: Round 4.398 to 2 decimal places. Rounding … rounding_to_the_nearest_100.pdf: File Size: 274 kb: File Type: pdf: Download File. 5-a-day GCSE 9-1; 5-a-day Primary; 5-a-day Further Maths; 5-a-day GCSE A*-G; 5-a-day Core 1; More. Model answers & video solution for Rounding & Estimation. Copyright © 2004 - 2021 Revision World Networks Ltd. 4. Foundation / higher: Number: Number system. 2. Then look at the next digit along. Of o… 15 practice questions ; New a level Applied ; New Further Maths ;... 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