Question

round off 9909 to nearest 10 and 100 and also 1703 to nearest 10 and 100​

Answer 1

Answer:

near 10=100000 and near 100 is=9009

Answer 2

9909 to nearest 10 = 9910

9909 to nearest 100 = 9900

1703 to nearest 10 = 1700

1703 to nearest 100 = 1700

Step-by-step explanation:

We have to round off 9909 to the nearest 10 and 100 and also 1703 to the nearest 10 and 100​.

Firstly, when we have to round off any digit to the nearest ten, we have to use the following rules;

• If the last digit is greater than or equal to 5, i.e. 5, 6, 7, 8, and 9; then the last digit becomes 0 and the number left to it increases by 1 unit, i.e; 36 rounded to nearest ten will become 40.

• If the last digit is smaller than 5, i.e. 1, 2, 3, and 4; then the last digit becomes 0 and the number left to it remains the same, i.e; 33 rounded to nearest ten will become 30.

• If the last digit is 0, then we don't have to round off as it has been already rounded off.

Similarly, if we have to round off any digit to the nearest 100, we have to use the following rules;

• If the last two digits are greater than or equal to 50, then the last two digits become 0 and the number left to it increases by 1 unit, i.e; 364 rounded to nearest 100 will become 400.

• If the last two digits are smaller than 50, then the last two digits become 0 and the number left to it remains the same, i.e; 334 rounded to nearest 100 will become 300.

• If the last two digits are 0, then we don't have to round off as it has been already rounded off.

So, using the above rules;

9909 rounded to the nearest 10 will become 9910 because the last digit is greater than 5.

Also, 9909 rounded to the nearest 100 will become 9900 because the last two digits are smaller than 50.

Similarly, 1703 rounded to the nearest 10 will become 1700 because the last digit is smaller than 5.

Also, 1703 rounded to the nearest 100 will become 1700 because the last two digits are smaller than 50.