Section 1.6 Division of Whole Numbers 49 Skill Practice Divide. 12. 8136 Answers 12. 17 13. 413 divisor may produce a different quotient. Similarly, changing the manner in which numbers are grouped with division may affect the outcome. See Exercises 31 and 32. 3. Long Division To divide larger numbers we use a process called long division. This process uses a series of estimates to find the quotient.We illustrate long division in Example 3. Using Long Division Example 3 7161 Divide. Solution: Estimate 7161 by first estimating 716 and writing the result above the tens place of the dividend. Since there are at least 2 sevens in 16. 7 2 14, The 2 in the tens place represents 20 in the quotient. Multiply and write the result under the dividend. Subtract 140.We see that our estimate leaves 21. 721 2 7161 140 21 7 20 Repeat the process. Now divide and write the result in the ones place of the quotient. Multiply Subtract. 7 3. 23 7161 140 21 21 0 The quotient is 23. Check: ✔ 23 7 161 We can streamline the process of long division by “bringing down” digits of the dividend one at a time. Using Long Division Example 4 Divide. Solution: 682 96138 54 73 72 18 18 0 6138 9 61 9 9 6 54 is estimated at 6. Multiply and subtract. 73 9 9 8 72 is estimated at 8. Multiply and subtract. 18 9 2. Multiply 9 2 18 and subtract. Check: ✔ 6 7 8 1 2 9 6138 The quotient is 682. Skill Practice Divide. 13. 2891 7
miller_prealgebra_2e_ch1_3
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