The Sun is 150 million kilometers from the Earth. The Moon is 400 thousand kilometers from the Earth. a A total lunar eclipse happens when the positions of the Sun, Earth, and Moon are in a straight line, with the Earth between the Sun and the Moon. Find the distance between the Sun and the Moon in scientific notation. Sun Earth Moc

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.