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Lesson 1-2 Example 4

2-4. Lesson 1-2 Example 4. Solve. PASSWORDS Wilson has a four-digit even number as the password for his computer. The digits he used are 4, 6, 8, and 9, and the number rounds to 6,500. What is Wilson’s password?. Understand Read the problem. Write what you know.

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Lesson 1-2 Example 4

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  1. 2-4 Lesson 1-2 Example 4 Solve. PASSWORDS Wilson has a four-digit even number as the password for his computer. The digits he used are 4, 6, 8, and 9, and the number rounds to 6,500. What is Wilson’s password? Understand Read the problem. Write what you know. Use the digits 4, 6, 8, and 9. The password is an even number. The number rounds to6,500.

  2. 2-4 Lesson 1-2 Example 4 Plan Pick a strategy. One strategy is to use logical reasoning.

  3. 4 6 8 9 2-4 Lesson 1-2 Example 4 Solve Place the possible digits in the thousands place.

  4. 6 8 6 9 6 4 2-4 Lesson 1-2 Example 4 Next place the possible digits in the hundreds place. Solve

  5. 2-4 Lesson 1-2 Example 4 What numbers remain? Solve 8 and 9 Which of those will make an even number? 8 That digit must go in the ones place. Fill in the remaining number in the tens place. Wilson’s password is 6,498.

  6. 2-4 Lesson 1-2 Example 4 Check Is the number even? You can test to see if it will round to 6,500 by using a number line or place-value chart.

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