Explanation Given Information: The provided numbers are 791 + 1 , 000 + 52 . Formula used: Steps to add whole numbers: Step 1: Round off the each addends to the first digit and then add them to estimate the sum. Step 2: Calculate the exact sum. Step 3: Now compare the obtained estimated sum with exact sum and identify whether the exact sum is reasonable. Step 4: Again add the number second time to check the exact sum. Calculation: Consider the provided expression, 791 + 1 , 000 + 52 Round off each addend to the first digit as shown below: 800 + 1 , 000 + 50 Now add them as shown below: 800

11th Edition

ISBN: 9780134788975

Author: CLEAVES

Publisher: PEARSON

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Chapter 1.2, Problem 3SE

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To calculate: The estimated sum of 791+1,000+52 by rounding to the first digit and compare it with exact sum.

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Chapter 1.2, Problem 2SE

Chapter 1.2, Problem 4SE

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The estimated sum of 791 + 1 , 000 + 52 by rounding to the first digit and compare it with exact sum.

Solution Summary: The author calculates the estimated sum of 791+1,000+52 by rounding to the first digit and comparing it with exact sum.

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To calculate: The estimated sum of 791+1,000+52 by rounding to the first digit and compare it with exact sum.

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Chapter 1 Solutions