   Chapter 1.III, Problem 9RE ### Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447

#### Solutions

Chapter
Section ### Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447
Textbook Problem

# Estimate the following by rounding each number all the way; then multiply to get the exact answer.                                                     Estimate _                             Rounded   Estimate _                           Exact   Answer _       202                                                     200                                                                           100 , 000 _                                                     98 , 980 _ × 490 _                                               × 500 _ 98 , 980                               100 , 000

To determine

To calculate: The rounded estimate and the exact answer of the multiplication,

202×     490             ¯

Explanation

Given Information:

The provided multiplication is,

202×     490             ¯

Formula used:

Steps for multiplying whole numbers.

Step 1: Write down the factors in columns such that the place values line up.

Step 2: Multiply every digit of the multiplier with the multiplicand, starting with the units. Each multiplication gives a partial product whose unit digit appears under the corresponding digit of the multiplier.

Step 3: Now in each column, add the digits of the partial products, starting with the units column on the right.

Calculation:

Consider the provided expression,

202×     490             ¯

To find exact value of multiplication,

Remove the zeros and add them later in the final solution.

202×       49             ¯

Multiply the multiplier ‘9’ with the multiplicand.

202×       49    1,818 ¯

Multiply the multiplier ‘4’ with the multiplicand, and write the partial product under the corresponding column:

202×       49<

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