Question

9250*19 using general rule.

Answer 1

Given :

9250 * 19

To Find : Estimate using general rule

Solution:

9250

can be approximated to  9000

19 can be approximate to 20

9000 * 20

= 180000

Estimated product is 180000

Actual Product

9250 * 19

= 9250 * (20 - 1)

= 9250 * 20  -  9250 * 1

= 185000 - 9250

= 175750

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Answer 2

General Rule

Given :-

9250 * 19

To Find :-

The product using general rule.

Solution :-

In mathematics, if we are asked to estimate a product using general rule then we should follow the following steps :-

1. Round of the given numbers
2. Then multiply the rounded-off numbers.

In the given question, we are given the following numbers :-

$9250\ *\ 19$

1. 9250 will be rounded-off to 9000
2. 19 will be rounded-off to 20

$Estimated\ product = 9000\ * \ 20 = 1,80,000$

Final Answer :-

Hence, the estimated product is 1,80,000.