Explanation Given information: The expression is 1000 − 123.4 _ . Use the below steps to subtract: Write the second number below the first number as the decimal places are lined up. Now, place the subtraction sign on the left of the second number. Now, subtract as whole numbers:- 1000 − 123.4 _ Then, subtract the digits from the right to the left as whole numbers. Placing a zero to the right of the digits after the decimal in any number will not change any value. Now, insert the decimal and one zero to the right of 0 in the first number so that the digits can be lined up neatly. 1000.0 − 123.4 _ Subtract the first place digits to the right of the decimal. Since 4 is larger than 0 , borrow 1 ones from the ones place. Since there is a 0 in the ones place, so borrow 1 ten from the tens place. Since there is another 0 in the tens place, borrow 1 hundred from the hundreds place. There is yet another 0 in the hundreds place also, so borrow 1 thousand from the thousands place. 1 thousands=10 hundreds Split these 10 hundreds as 9 hundreds+10 tens . 1 hundred=10 tens Split these 10 tens as 9 tens + 10 ones . 1 tens=10 ones Split these 10 ones as 9 ones+10 tenths . Thus, in thetens place, 0 becomes 0 + 10 = 10 , the ones place digit 0 becomes 0 + 10 − 1 = 9 , the tens place 0 becomes 0 + 10 − 1 = 9 , thehundreds place digit 0 becomes 0 + 10 − 1 = 9 , and the thousands place 1 becomes 1 − 1 = 0 . 1 0 0 10 9 0 10 9 0 10 9 . 0 10 − 1 2 3 . 4 _ Subtract 4 from 10 , that is: 10 − 4 = 6 . 1 0 0 10 9 0 10 9 0 10 9 . 0 10 − 1 2 3 . 4 _ 6 Now, place the decimal as in the other numbers:- 1 0 0 10 9 0 10 9 0 10 9 . 0 10 − 1 2 3 . 4 _ . 6 Subtract the number before the decimal 3 from 9 , that is: 9 − 3 = 6 . 1 0 0 10 9 0 10 9 0 10 9 . 0 10 − 1 2 3 . 4 _ 6

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ISBN: 9780134896014

Author: Martin-Gay

Publisher: PEARSON

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Chapter 4.3, Problem 31ES

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The exact and estimated answer of 1000 − 123.4 _ .

Solution Summary: The author calculates the exact and estimated answer of underset_c1000.

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The exact and estimated answer of 1000− 123.4 _.

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