Exponents and Powers Class 8 Formulas
Exponents and Powers Class 8 Formulas are crucial in solving exponential equations. Thus, it is necessary to understand and memorize these formulas for students. Having a list of all these formulas in one place during exam preparation is highly beneficial. Keeping this in mind this article provides a list of all the important exponents and powers class 8 formulas along with some pro tips to memorize them.
List of Exponents and Powers Class 8 Formulas
Students can refer to the List of Exponents and Powers Class 8 Formulas given below:
- Multiplication of Exponents: am × an = am+n
- Division of Exponents: am ÷ an = am–n
- Power of Power: (am)n = amn
- Power of a Product: am × bm = (ab)m
- Zero Power a0 = 1
- Power of a Quotient: am/ bm = (a/b)m
Applications of Exponents and Powers Class 8 Formulas
Exponents and Powers class 8 formulas are extremely helpful in reading large numbers that we encountered in different scenarios. Here are some of the useful applications of Exponents and Powers class 8 formulas:
- Exponents formulas are often employed in algebraic equations and can be multiplied just like other numbers. Exponents, which represent repeated multiplication, can be easily simplified by employing a few simple formulas.
- In astronomy, there are huge scientific calculations involved; hence the exponents and powers class 8 formulas help simplify those calculations for the scientists.
Exponents and Powers Class 8 Examples
Example 1: Calculate the value of 2-4
Solution: 2-4 = (1/ 2)4 = 1/16
Example 2: Write the following number in its usual form: 4.55 × 105
Solution: 4.55 × 105 = 455/100 x 100000 = 455000
Tips to Memorize Exponents and Powers Class 8 Formulas
Learning the exponents and powers class 8 formulas may be challenging due to a variety of factors such as the lack of logical understanding, shortage of time to prepare, or excessive exam anxiety. As a result, students can get some help in properly revising the formulas for their exams by following the tips listed below.
- It is useful to thoroughly grasp the concept behind the formula. It also helps to clear any doubt right away with the help of a teacher or friends.
- Once the logic behind the formula is clear, students must try to write it down three to four times. This will help in retaining the logic that they've learned.
- Images of formulas can also be obtained from the internet and saved as wallpaper on mobile phones and computers. This will allow students to have the formulas in front of them for the majority of the time, allowing them to remember them properly.
Students can download the printable Maths Formulas Class 8 sheet from below.
FAQs on Exponents and Powers Class 8 Formulas
What are the Important Exponents and Powers Class 8 Formulas?
The important exponents and powers class 8 formulas are as listed below:
- Multiplication of Exponents: am × an = am+n
- Division of Exponents: am ÷ an = am–n
- Power of Power: (am)n = amn
- Power of a Product: am × bm = (ab)m
- Zero Power a0 = 1
- Power of a Quotient: am/ bm = (a/b)m
What are the Basic Exponents and Powers Class 8 Formulas?
The basic exponents and powers class 8 formulas listed in this article will help students understand the laws of exponents, including how to multiply exponents when the base is the same, how to remove the power out of power, and how to multiply and divide powers with the same exponents.
What are the Important Concepts Covered Under Exponents and Powers Class 8 Formulas?
The important concepts covered under exponents and powers class 8 formulas will let students comprehend how to write big numbers in a shorter way and also in their standard forms. Also, they will learn how to proceed with calculations if a number has an exponent as zero.
How Many Formulas are There in Exponents and Powers Class 8 Formulas?
There are around six exponents and powers class 8 formulas which, if learned well will simplify the concept of exponents for the students. These formulas cover exponents rules for multiplication, division, subtraction and multiplication of powers.
How can I Memorize Exponents and Powers Class 8 Formulas?
Students can memorize the exponents and powers class 8 formulas with the help of the tips mentioned in this article like:
- The students must go through the exponent chapter in their book thoroughly and clear all doubts. They can clear all their doubts with their teacher and friends before moving on to solve any problems.
- Students must try to write down the formula three to four times once the logic behind it is clear. This will assist them in remembering the logic they've learned.
- Formula images can also be downloaded from the internet and stored as wallpaper on phones and laptops. This will allow students to have the formulas in front of them most of the time, making it easier for them to recall them.