Write each decimal as a percent. 0.4

Verified step by step guidance

1. Understand that converting a decimal to a percent involves multiplying the decimal by 100.
2. Take the decimal 0.4 and multiply it by 100.
3. This multiplication shifts the decimal point two places to the right.
4. After shifting the decimal point, append the percent symbol (%) to the result.
5. The final expression represents the decimal as a percentage.

Key Concepts

Decimal to Percent Conversion

To convert a decimal to a percent, you multiply the decimal by 100 and add a percent sign. For example, to convert 0.4 to a percent, you calculate 0.4 × 100, which equals 40. This process is essential for expressing a part of a whole in terms of one hundred.

Understanding Percentages

A percentage represents a fraction of 100. It is a way to express how much of something there is relative to a total. Understanding percentages is crucial in various fields, including finance, statistics, and everyday calculations, as it helps in comparing quantities effectively.

Mathematical Operations

Basic mathematical operations, such as multiplication and addition, are fundamental in converting decimals to percentages. Mastery of these operations allows for quick and accurate calculations, which are necessary for solving problems involving percentages in real-world scenarios.