When us plot this numbers ~ above a number line we observe that12 lies in between 10 and 20. Also 12 is nearest come 10 than 20. So, we round off12 together 10, exactly to the nearest tens.

If we take into consideration 19, us observe that it is nearer to 20 than10. So, we round off 19 come 20, correct to the nearest tens.

You are watching: Round 25 to the nearest ten

Now, let us take into consideration the number 15. If us plot this number ~ above number heat we discover that 15 lieshalf-way in between 10 and also 20. By convention, us round off 15 come 20.

Now we will certainly learn just how to estimate the number 23, 27 and 29. Look in ~ the arrowhead at 23. That is nearer come 20 보다 30 because23 - 20 = 3 when 30 – 23 = 7. Us take 23 as 20 once we calculation it come thenearest 10. Again, look at the arrowhead at 27. The arrow at 27 is nearer to30 보다 20 since 30 – 27 = 3 and also 27 – 20 = 7. So, 27 is taken as 30. In the very same way, look in ~ the arrow at 29. That is nearer come 30than 20 due to the fact that 30 - 29 = 1 while 29 – 20 = 9. So, 29 is taken as 30 because itis close to to 30 보다 20.

How will we round off the number 25?

25 is equal distance from 20 and also 30. Through convention the istaken together 30.

1. Round turn off to thenearest tens:

(i) 362

The provided number is 362.

Its ones or unit number is 2, which is less than 5. So, wereplace the ones number by 0 to acquire the rounded off number.

Hence, rounded turn off number = 360.

(ii) 909

The provided number is 909.

Its ones or unit number is 9, i beg your pardon is higher than 5. So, weincrease the tens digit through 1 and also replace the ones digit by 0 to gain the roundedoff number.

Hence, rounded turn off number = 910.

2. just how toestimate 2534 come the nearest 10?

34 is nearer come 30 보다 40, so 2534 is taken as 2530.

From the over examples, to calculation to nearest 10s we cangeneralize that,

(i) the numbers having actually 1, 2, 3, 4 at ones or units place arerounded off downwards.

(ii) the numbers having actually 5, 6, 7, 8, 9 at ones or units placeare rounded turn off upwards.

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