Kavi numbered the 346 pages in his maths book.

How many digits did he write?

To find out how many digits Kavi wrote while numbering the 346 pages in his math book, let's break it down by considering how many digits are needed for each range of page numbers.

### Step 1: Consider pages 1 to 9
- Pages: 1 to 9 (single-digit numbers)
- Number of pages: \(9\)
- Total digits: \(9 \times 1 = 9\) digits

### Step 2: Consider pages 10 to 99
- Pages: 10 to 99 (two-digit numbers)
- Number of pages: \(99 - 10 + 1 = 90\) pages
- Total digits: \(90 \times 2 = 180\) digits

### Step 3: Consider pages 100 to 346
- Pages: 100 to 346 (three-digit numbers)
- Number of pages: \(346 - 100 + 1 = 247\) pages
- Total digits: \(247 \times 3 = 741\) digits

### Step 4: Add all the digits together
Now, sum the digits from each range:
\[
9 \text{ (from pages 1 to 9)} + 180 \text{ (from pages 10 to 99)} + 741 \text{ (from pages 100 to 346)} = 930 \text{ digits}
\]

### Final Answer:
Kavi wrote **930 digits** in total.

Would you like more details on this solution, or do you have any other questions?

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**Related Questions:**

1. How many digits would be written if the book had 500 pages?
2. What if the book had 999 pages? How many digits would be written then?
3. How many digits are needed to number the first 100 pages?
4. How many digits are needed to number the pages from 50 to 200?
5. If the book starts at page 5, how many digits would be written by page 346?

**Tip:** Breaking down a problem into smaller parts makes it easier to manage and reduces the chance of errors.

Discover how many digits Kavi wrote while numbering the 346 pages in his math book. This detailed analysis breaks down the digits required for different ranges of page numbers, from single-digit to three-digit numbers. Suitable for students in Grades 4-6.

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