Section 1.6 Division of Whole Numbers 53 Example 3 7161 716 The 2 in the tens place represents 20 in the quotient. Multiply 7 20 and write the result under the dividend. Subtract 140.We see that our estimate leaves 21. Skill Practice Divide. 12. 8136 Answers 12. 17 13. 413 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 Divide. Solution: Estimate by first estimating and writing the result in the tens place of the quotient. Since there are at least 2 sevens in 16. Repeat the process. Now divide and write the result in the ones place of the quotient. 23 7161 140 21 21 0 721 2 7161 140 21 7 2 14, 7161 Multiply Subtract. 7 3. 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 9 6 54 9 8 72 The quotient is 682. and subtract. Bring down the 3. and subtract. Bring down the 8. 9 2 18 and subtract. Check: ✔ 6 7 8 1 2 9 6138 Skill Practice Divide. 13. 2891 7
miller_basic_college_math_3e_ch1_3
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