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Step 1: round off 543 to the nearest 100.
543 500
Step 2: round off 876 to the nearest 100.
876 900
Step 3: multiply the rounded off numbers
500 X 900 = 450000
 Estimating Quotient: We round off the dividend and divisor, then divide the
rounded off numbers.

e.g. 1: estimate the quotient by dividing 9876 by 98.
** Here, we have to round off 9876 to nearest 1000 and 98 to the nearest 100,
as it will be easier to get the product.
Step 1: round off 9876 to the nearest 1000.
9876 10,000
Step 2: round off 98 to the nearest 100.
98 100
Step 3: divide the rounded off numbers.
10,000 ÷ 100 = 100.