Question

round off 15 number to the nearest ten​

Answer 1

Answer:

So, we round off 19 to 20, correct to the nearest tens. Now, let us consider the number 15. If we plot this number on number line we find that 15 lies half-way between 10 and 20. By convention, we round off 15 to 20.

Answer 2

Given:

round off 15 number to the nearest ten​

To find:

The required answer

Solution:

The given number is 15  

• To round off the given number to the nearest tens, Check the right-side number of the tens place.    

The right-side number of the tens place is 5.

• If the right-side number of the tens place is 5 or more than 5, add 1 to the digit of tens place and keep zero at units place.

Add 1 to tens place digit:

1 is in tens place:

1 + 1 = 2

Keep zero at units place.

The required number is 20.

Hence, round off 15 number to the nearest ten​ = 20