Use the rules for multiplication by powers of 10 to calculate 3 × 100.

Power and exponents are one of the most important concepts. They are very useful when it comes to calculations, and they can represent very large numbers in a compact form in the powers of 10.

Answer: By the rules of multiplication by powers of 10, we get 3 × 100 as 300.

Let's understand the solution in detail.

Explanation:

By the rules of multiplication by powers of 10, 100 can be represented as 10².

Hence, we have to calculate 3 × 10².

Now, we know that any number to the power of 10ⁿ will result in the original number with n zeroes after it.

Hence, we append 2 zeroes after 3 to get the result of the given multiplication question.

Hence, 3 × 10² = 300

Therefore, by the rules of multiplication by powers of 10, we get 3 × 100 as 300.