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Converting a decimal to a percent is a common skill in math. It can be very handy in various real-life situations. To make this conversion, it's important to follow a few basic steps.
First, take your decimal number. In our example, it is 0.55. You then need to multiply this decimal by 100. This places the decimal in a format that represents a percentage. So, for our example, 0.55 multiplied by 100 equals 55. Finally, you place a percent symbol (%) after the number. This indicates that the number is a percentage. Thus, 0.55 becomes 55%.

Converting between these forms is key in subjects such as finance, science, and cooking, where understanding ratios is vital. Remember, moving from decimal to percent simply involves shifting the decimal point two places to the right, which corresponds to multiplying by 100.

Multiplying decimals might sound tricky, but with practice, it becomes easier. In our problem, we needed to multiply 0.55 by 100. Here's how you can do that step-by-step.

First, ignore the decimal point and multiply the numbers as if they were whole numbers. For example, 55 * 100 = 5500. Now, count the number of decimal places in the original number. In 0.55, there are two decimal places. So, after performing the multiplication, we place the decimal two places from the right in our result. This changes 5500 to 55.00.
Multiplying by 100 simplifies this because any number multiplied by 100 shifts its decimal point two places to the right.
In our case, 0.55 becomes 55.00, which simplifies further to 55 because trailing zeros after a decimal point do not change the value.

Arithmetic is the branch of mathematics dealing with numbers and basic operations such as addition, subtraction, multiplication, and division. Understanding how to carry out these operations is fundamental.
Converting decimals to percentages and other operations involves key arithmetic skills.

When you multiply 0.55 by 100, you are using the basic multiplication rules you have learned. Another example could be adding 25 apples to 45 apples. Just like that, multiplying by 100 shifts the decimal point two places.

Practicing these operations can help you become more familiar and comfortable working with numbers. This ease will serve you well not just in math class, but in everyday tasks such as budgeting, cooking, and shopping.