Question

Estimating the following sums by rounding off the addends mentioned (to the nearest 100) digit is 4627+3781+1215 =

Answer 1

Answer:

Addition = 10,600

Step-by-step explanation:

4627 = 4600

3781 = 4800

1215 = 1200

Addition = 4600 + 4800 + 1200 = 10,600

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Answer 2

Step-by-step explanation:

Given that:Estimating the following sums by rounding off the addends mentioned (to the nearest 100) digits are 4627+3781+1215

To find: Result of addition (after rounding off the numbers to nearest 100)

Solution:

Step 1:

Round off all addends to nearest hundred.

4627 is rounded as 4600

(because 27< 50)

3781 is rounded as 3800

(because 81> 50)

1215 is rounded as 1200

(because 15< 50)

Step 2:

Add all numbers after rounding off.

4600

3800

1200

+

----------

9600

----------

Result is 9600.

Method: If last two digits are 50 or more than 50,then hundredth digit is increased by 1,otherwise it remains same.

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