Rounding Numbers To Nearest Ten

https://steemitimages.com/DQmZ6qB9WTh4DWfkjNMRHJARwtxXGPTBtzcuxbnSsdunMvJ/RoundingToTens.png

We need rounding when we want to estimate the numbers. Estimation is many times very helpful to check for reasonableness of a quantity or even of an answer to a problem. We start with rounding to nearest ten.

For example, consider the number 44 and we want to round it to nearest ten. First of all we need to know that there are two nearest tens to 44 which are 40 and 50. Now we need to find which ten 44 is closer to. Is it 40 or 50?

Clearly 44 is closer to 40 than 50, hence we round down 44 to 40 as shown below;

https://steemitimages.com/DQmPmoLJ2kDRp6PGgbStLG9n4PToe3ctDwqujSa9Qa2PPSD/Round44.png

Now what about 47?

https://steemitimages.com/DQmdwT8vDmBxfsQWp8HwFMVLekxLUFEKxqxSfddoQVAq9nB/Round47.png

Well, what if the number is exactly in the centre? Like 45!

https://steemitimages.com/DQmYEXwFebMzfsNBku45nQnvHuc5o6HDzeekrnQ4zizfkDz/Round45.png

Now that we know the basics of rounding to tens, there is an easy trick to round these numbers. Please do the following worksheets to learn that trick

https://steemitimages.com/DQmaBj3CgkxCbqjnZUh8qwaHJTNEurX9Zhii5sw8cdK9A1k/RoundingToNearestTens1.1.png

PDF Link To Above Worksheet

https://steemitimages.com/DQmY2owex87xUEA1JksiiUBbQwoLYsB2xQRPC7sA7PBb58D/RoundingToNearestTens1.2.png

PDF Link To Above Worksheet

https://steemitimages.com/DQmbA46ZXGomU4zHn61fsQh15zxgt4mLwFZHaJBaxJPdEMG/RoundingToNearestTens1.3.png

PDF Link To Above Worksheet

Below is the link to 2nd grade math page, where you can print all the content for 2nd grade math

2ND GRADE MATH CORE CURRICULUM

Below are the links to my previous posts on 3rd grade math;

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-place-value-to-ten-thousands-lesson-and-worksheets-1

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-place-value-to-ten-thousands-worksheets-2

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-writing-numbers-to-ten-thousands-using-different-methods

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-value-and-place-value-of-a-digit-in-a-given-number-1

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-value-and-place-value-of-a-digit-in-a-number-2

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-writing-place-value-of-an-underlined-digit-in-a-number

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-value-of-an-underline-digit-in-a-number-worksheets

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-worksheets-on-estimating-numbers

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-comparing-and-ordering-numbers-1

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-comparing-numbers-worksheets

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-finding-greater-and-smaller-numbers-in-a-set-of-numbers

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-finding-greater-and-smaller-number

https://steemit.com/steemiteducation/@mathworksheets/3rd-grade-math-ordering-numbers-worksheets

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