Brief Description A decimal can be described as a number composed of a whole number part and a fractional part separated by a decimal point. These types of numbers are written on the scale of tens. As mentioned, a decimal has two parts: a whole number (can be in ones, tens, hundreds, thousands, etc.) and a fractional part (tenths, hundredths, thousandths, etc.). The entry-level for decimal-related lessons is in the 4th grade.
Here, learners are starting to differentiate decimals from fractions and whole numbers, illustrating decimals, writing decimals in standard and expanded forms, as well as solving problems involving decimals. As the learners advance to the next grade, they are unlocking the wider and more complex concepts under decimals by answering more challenging exercises and incorporating its concepts into other math lessons such as measurement, number lines, graphs, equations, etc.
Importance of the Topic Learning about decimals provides a high probability of understanding and overcoming some advanced lessons in mathematics. Lessons such as fractions, place value, number lines, measurement, etc., can be easily grasped if a learner has a good foundation of concepts of decimals.
Aside from its unique concepts, decimal numbers offer various applications in real-life scenarios. Decimal numbers are also useful when we need to express large or small quantities. Sometimes, people can interpret decimal numbers rather than fractions because it is more readable and simple to use.
Application of the Learned Topic in Life Some of the popular applications of decimals in our daily living are understanding money denominations: the use of coins and centavos, knowing and comparing prices of goods, reading and measuring length, weight, time, etc. Decimals are also critical when determining the general average of a student, the stat of an athlete, the ups and downs of stocks, and many more.