Page 115 - New Medley 4 Semester 1

Example 32: Round 57127 to the nearest ten-thousands.

Solution: Digit in thousands place of 57127 is 7. Clearly rule 2 is
applicable. To round the number we replace the digit in

thousands, hundreds, tens and units places by zeros and
add 10000.

Hence 50000 + 10000 = 60000.

EXERCISE 1.8

A. Round the following numbers to the nearest tens.
1. 42826 2. 652473

B. Round the following numbers to the nearest hundreds.

1. 42226 2. 773855

C. Round the following numbers to the nearest thousands.

1. 96327 2. 792835

D. Round the following numbers to the nearest ten thousands.
1. 53252 2. 496610

E. Round the following numbers to the nearest lakhs.
1. 547123 2. 278721

International System of Numeration (Five and Six digit Numbers)

Largest 5-digit number is 99999. Let us find its successor.

To do this we add 1 to 99999.

TTh Th H T O

9 9 9 9 9

+ 1

1 0 0 0 0 0

We get a new place value. We will call it hundred thousands place.

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