ROUNDING OF THREE-DIGIT NUMBERS TO THE NEAREST HUNDREDS .

INTRODUCTION.

In this lesson we are learning how to round off  three-digit numbers to the nearest hundreds.

OBJECTIVE :
By the end of this lesson , the  learner will be able to to demonstrate understanding of how to round off three-digit numbers to the nearest hundreds.

 To  round off a three -digit number , check the digit in the tens place. If it less than 5, maintain the digit  in the hundreds place and replace Tens and Ones with Zeros but if the digit in the Tens place is more than 5 add 1 to the digit in hundreds place and replace the digits in Tens and Ones with Zeros.

     EXAMPLES
1.  Round off 467 to the nearest hundreds.

 SOLUTION
The digit in the Tens place is 6.6 is greater than 5. So add 1 to the digit in the hundreds place . And the digit in the hundreds place is 4.(4+1=5) and replace the digit in the Tens place which is 6 with a zero  and the digit in the Ones place also  which 7 with a zero to get this: 467 to 500. So when we round off 467 ,we had 500.

2. Round off 437 to the nearest hundreds.

  SOLUTION
The digit in the Tens place 3. 3 less than 5 . So maintain the digit in the hundreds place and replace the digits in the Tens and Ones places with Zeros to get this: 437 to 400.

 NB: To be able  to round off numbers correctly you need to  abide by the rules and apply them appropriately.
   

  REVIEW EXERCISE.

Round off the numbers to the nearest hundreds.

1. 832

2.484

3.597

4. 433

5.465

6.365

7.194

8.228