Explanation Procedure used: Division: Use the following steps to divide the decimal numbers. “1. Write the divisor and dividend in standard long-division form. 2. Shift the decimal point in the divisor to the right to make the divisor a whole number. 3. Shift the decimal point in the dividend the same number of places. (Attach zeros if necessary.) 4. Place the decimal point in the answer space directly above the new decimal position in the dividend. 5. Divide exactly as you would with whole numbers. The decimal points in divisor and dividend may now be ignored.” Rounding the number : Step 1: Place a ∧ mark to the right of the place to which the number is to be rounded. Step 2: If the digit to the right of the mark is less than 5, replace all digits to the right of the mark with zeros. If these zeros are decimal digits, discard them. Step 3: If the digit to the right of the mark is equal to or larger than 5, increase the digit to the left by 1 and replace all digits to the right with zeros. Drop all right end decimal zeros, but keep zero place holders. Calculation: The given expression is, 10 ÷ 70 . The divisor is 70 and the dividend is 10. Rewrite the divisor and dividend in standard long-division form and place the decimal point in the answer space as, 70 . 10. The number 70 goes into 10 exactly 0 time and the remainder will be 10. Attach zero to the divisor and bring it down. The number 70 goes into 100 exactly one time and the remainder will be .30. Attach zero to the divisor and bring it down. The number 70 goes into 300 exactly 4 times and the remainder will be .20. Attach zero to the divisor and bring it down. The number 70 goes into 200 exactly 2 times and the remainder will be 60. Attach zero to the divisor and bring it down. The number 70 goes into 600 exactly 8 times and the remainder will be 40 and so on. The decimal point in the divisor and dividend may now be ignored. The steps can be described as follows. 3 0.1428 10

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ISBN: 8220100803055

Author: SAUNDERS

Publisher: PEARSON

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Chapter 3.2, Problem 15CE

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To divide: The number 10 by 70 and round the answer in to three decimal places.

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To divide: The number 10 by 70 and round the answer in to three decimal places.

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