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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.
Round off maths questions. Click here for rounding off numbers cards to practice. Practice questions with answers on the topic of rounding to the nearest 10 100 or 1000. Is it easy to multiply 3 33333 x 5 or just 3 x 5. Do you know what is the smallest 3 digit number that will round off to 140 when rounded to the nearest ten.
Videos worksheets 5 a day and much more. 1 minute 2 minutes 3 minutes 4 minutes 5 minutes 6 minutes 7 minutes 8 minutes 9 minutes 10 minutes 11 minutes 12 minutes 13 minutes 14 minutes 15 minutes 16 minutes 17 minutes 18 minutes 19 minutes 20 minutes 21 minutes 22 minutes 23 minutes 24 minutes 25 minutes 26 minutes 27 minutes 28 minutes 29 minutes 30 minutes. Rounding is a process of simplifying a number without changing the value of it too much. We always round up numbers to make figures easy.
A comprehensive database of more than 11 rounding quizzes online test your knowledge with rounding quiz questions. You will be required to round numbers to the nearest thousands ten thousands hundred thousands and millions. Decide which is the last digit to keep. Rounding numbers to the nearest whole number 3 makes this number easy to understand.
We do this by taking a number and working out which of the simpler numbers it is closest to. If you round numbers too early i e. The corbettmaths practice questions on rounding. There are several different methods for rounding here we look at the common method the one used by most people.
Here is a harder example. Rounding description instructions. So all the numbers between 135 and 144 will round off to 140 when rounded to the nearest ten. Rounding off to the nearest 100.
How to round numbers. Our online rounding trivia quizzes can be adapted to suit your requirements for taking some of the top rounding quizzes. Rounding numbers makes them simpler to use. Learn about and revise rounding and estimating numbers and how to count significant figures with bbc bitesize ks3 maths.
That s right it s 135. But increase it by 1 if the next digit is 5 or more this is called rounding up.
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