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17 December, 13:28

How to estimate 20394.6

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  1. 17 December, 13:38
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    20395

    Estimation is the process of making quick mental calculation of a value, quantity, or number.

    We basically do estimation every day of our lives.

    For example, we want to order several pizzas. We know that each pizza costs between $5 to $10. We order 3 pizza pies; Pie 1 = $6; Pie 2 = $8; Pie 3 = $9.

    In getting an estimate, we either overestimate or underestimate. We know that whether a product of an estimate is overestimated or underestimated by the direction of the rounded up numbers.

    We overestimate, when we round up the numbers

    We underestimate, when we round down the numbers.

    Overestimate: $10 x 3 pizza = $30 total cost

    Underestimate: $5 x 3 pizza = $15 total cost

    Actual cost: $6 + $8 + $9 = $23

    In estimating expenses, it is better to overestimate. This gives us an allowance when incidental expenses incur.

    In estimating income, it is better to underestimate. It gives us a more realistic value of the income.
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