Question

Compare 0.0000635 and 0.000456.

Answer 1

To compare the two numbers, 0.0000635 and 0.000456, we can align them by their decimal points:

- 0.0000635
- 0.000456

Looking at the digits from left to right, we see that:

- The first number (0.0000635) has its first significant digit at the fifth decimal place (6).
- The second number (0.000456) has its first significant digit at the fourth decimal place (4).

Since 0.000456 has a higher first significant digit than 0.0000635, we can conclude that:

**0.000456 is greater than 0.0000635.**

In summary:
0.0000635 < 0.000456.