Please solve the following math problems and provide the number names for the given numbers: 33587, 335526, 33547, 2407, and 4005242. Also, solve 900 - 600 and 600 - 7.

Here are the solutions to the problems from the image:

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The numbers listed are 33587, 335526, 33547, and 2407. Assuming the task is to write their number names:

• 33587: Thirty-three thousand five hundred eighty-seven
• 335526: Three lakh thirty-five thousand five hundred twenty-six
• 33547: Thirty-three thousand five hundred forty-seven
• 2407: Two thousand four hundred seven

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The problem is a subtraction:

$$900 - 600$$

Subtracting the numbers:

$$900 - 600 = \boxed{300}$$

The student's answer is correct.

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Assuming the problem is $600 - 7$: