Explanation Given Information: The multiplication of: 3 , 128 × 478 _ . Formula used: The procedure used to multiply two whole numbers is: Step 1: Find the estimated product of the rounded numbers with each number rounded to its first digit. Step 2: Use the calculator to calculate the exact product of the numbers. Step 3: Compare the estimated and exact product to determine if the exact product is reasonable. Step 4: Multiply the numbers manually to verify the product. Calculation: Consider the multiplication of: 3 , 128 × 478 _ Now, round each number to its first digit. 3 , 128 → 3 , 100 × 478 _ → × 500 _ So, the estimated product is calculated as, 3 , 100 × 500 _ 1 , 550 , 000 Thus, the estimated product is obtained as 1 , 550 , 000 . Now, find the exact product of the numbers by calculator. Enter the provided numbers into the calculator. So, the exact product is obtained as, 3128 × 478 = ⇒ 1 , 495 , 184 The obtained estimated product and the exact product are not reasonably close. Verify the exact product by multiplying the numbers manually. 3 , 128 × 478 _ Start with the ones place

11th Edition

ISBN: 9780134496436

Author: Cheryl Cleaves, Margie Hobbs, Jeffrey Noble

Publisher: PEARSON

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Numerical Integration

In a mathematical investigation, numerical integration comprises a wide group of calculations for computing the mathematical estimation of definite integral, and likewise, the term is moreover in some cases used to depict the numerical solution of differ…

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Chapter 1, Problem 61ES

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To calculate: The estimated product with each number rounded to the nearest hundred and then find the exact product of:

3,128 ×478_

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Chapter 1, Problem 60ES

Chapter 1, Problem 62ES

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The estimated product with each number rounded to the nearest hundred and then find the exact product of: 3 , 128 × 478 _

Solution Summary: The author explains how to calculate the estimated and exact product of two whole numbers.

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To calculate: The estimated product with each number rounded to the nearest hundred and then find the exact product of:

3,128 ×478_

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Chapter 1 Solutions

The estimated product with each number rounded to the nearest hundred and then find the exact product of: 3 , 128 × 478 _

Solution Summary: The author explains how to calculate the estimated and exact product of two whole numbers.

Concept explainers

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To calculate: The estimated product with each number rounded to the nearest hundred and then find the exact product of: 3,128 ×478_

Want to see the full answer?

Chapter 1 Solutions

To calculate: The estimated product with each number rounded to the nearest hundred and then find the exact product of:

3,128 ×478_