7th grade
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How to simplify fractions before multiplying
How can you learn how to simplify fractions before multiplying them? On this page you will see how to simplify fractions before multiplying them, thus avoiding the procedure of simplifying […]
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Rhombus
A rhombus is a type of quadrilateral that has: This shape is often associated with a square due to the equality of all four sides in both the first and […]
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Dividing a whole number by a decimal number
When dividing by numbers, dividing a whole number by a decimal number is usually the most problematic! Here you can see examples of dividing a whole number by a decimal […]
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How to calculate a percentage
This guide will help you learn how to calculate a percentage of any number! Below this page, you can learn two different methods of calculating a percentage of a number. […]
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Multiplying and dividing exponents with same base
On this page, you can find the rules for multiplying and dividing exponents with the same base, ie equal base. In addition to the rules, below is a solved example […]
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Internal Energy
Internal energy of a body is the sum of all kinetic and all potential energies of its component particles. Every body or any matter has tiny particles. Depending on the […]
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Prime factor decomposition
Prime factor decomposition is a procedure in which a certain complex number is represented as a product of factors that are prime numbers! As a reminder: Data for prime factor […]
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Fluorine
Fluorine is a chemical element with atomic number 9. In addition to nine protons, fluorine has 10 neutrons in its atomic nucleus. So the total number of its nucleons is […]
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Gravitational Potential Energy
Gravitational potential energy is the energy possessed by a body due to a certain gravitational force with which it interacts with another body. In terms of planet Earth, gravitational potential […]
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Multiplication and division of fractions
On this page, you can see the rules for multiplication and division of fractions. Here you will meet only multiplication and division of fractions by fractions! On the page below […]
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Addition and subtraction of decimals
How to solve problems with addition and subtraction of decimals? On this page, you can review the rules that we should follow when adding and subtracting decimals. Apart from the […]
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Multiplication of integers
How do you solve short problems with the multiplication of integers? Here you can learn the rules for multiplying integers, as well as many examples with solutions. In general, the […]