Answer key for a seventh-grade math worksheet converting seven-digit number names to standard form.

The task in the image is to write numbers in standard form (numerical form) based on their word descriptions. The worksheet provides seven-digit numbers written in words, and the goal is to convert them into their numerical equivalents.

Solution Explanation:

#### Step 1: Understand the Structure of Seven-Digit Numbers
A seven-digit number has the following place values:
- Millions
- Hundred Thousands
- Ten Thousands
- Thousands
- Hundreds
- Tens
- Ones

For example, the number "nine million six hundred fifteen thousand four hundred sixty-nine" can be broken down as follows:
- Nine million = 9,000,000
- Six hundred fifteen thousand = 615,000
- Four hundred sixty-nine = 469

Combining these gives: 9,615,469

#### Step 2: Convert Each Number
Let's solve each problem step by step:

1. Nine million six hundred fifteen thousand four hundred sixty-nine
- Breakdown:
- Nine million = 9,000,000
- Six hundred fifteen thousand = 615,000
- Four hundred sixty-nine = 469
- Combined: 9,615,469

2. Nine million six hundred ninety thousand seven hundred ninety-three
- Breakdown:
- Nine million = 9,000,000
- Six hundred ninety thousand = 690,000
- Seven hundred ninety-three = 793
- Combined: 9,690,793

3. Four million seven hundred thirty-eight thousand seven hundred six
- Breakdown:
- Four million = 4,000,000
- Seven hundred thirty-eight thousand = 738,000
- Seven hundred six = 706
- Combined: 4,738,706

4. Seven million six hundred ninety-four thousand three hundred fifty-three
- Breakdown:
- Seven million = 7,000,000
- Six hundred ninety-four thousand = 694,000
- Three hundred fifty-three = 353
- Combined: 7,694,353

5. Nine million five hundred ten thousand nine hundred ninety-six
- Breakdown:
- Nine million = 9,000,000
- Five hundred ten thousand = 510,000
- Nine hundred ninety-six = 996
- Combined: 9,510,996

6. Nine million eighty-two thousand five hundred eighty-six
- Breakdown:
- Nine million = 9,000,000
- Eighty-two thousand = 82,000
- Five hundred eighty-six = 586
- Combined: 9,082,586

7. Seven million two hundred thirty-three thousand six hundred seventy-three
- Breakdown:
- Seven million = 7,000,000
- Two hundred thirty-three thousand = 233,000
- Six hundred seventy-three = 673
- Combined: 7,233,673

8. Eight million twenty-eight thousand six hundred three
- Breakdown:
- Eight million = 8,000,000
- Twenty-eight thousand = 28,000
- Six hundred three = 603
- Combined: 8,028,603

Final Answer:

The completed worksheet with the answers is as follows:

1. Nine million six hundred fifteen thousand four hundred sixty-nine = 9,615,469
2. Nine million six hundred ninety thousand seven hundred ninety-three = 9,690,793
3. Four million seven hundred thirty-eight thousand seven hundred six = 4,738,706
4. Seven million six hundred ninety-four thousand three hundred fifty-three = 7,694,353
5. Nine million five hundred ten thousand nine hundred ninety-six = 9,510,996
6. Nine million eighty-two thousand five hundred eighty-six = 9,082,586
7. Seven million two hundred thirty-three thousand six hundred seventy-three = 7,233,673
8. Eight million twenty-eight thousand six hundred three = 8,028,603

Thus, the final answer is:
\boxed{9,615,469; 9,690,793; 4,738,706; 7,694,353; 9,510,996; 9,082,586; 7,233,673; 8,028,603}