📖 Tricky Math Words Made Easy! 📖

Sometimes math books use big words. Let's look at the pictures and simple meanings to understand them perfectly!

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Algebraic Expressions

What it means: A math sentence that has a mix of numbers and English letters in it!

  • Expressions which contain an algebraic symbol are called algebraic expressions.
  • For example, "4 + n" and "a - 5" are algebraic expressions.
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Unknown

What it means: A hidden number we don't know yet. It's like a mystery box waiting to be opened!

  • If the number of books in a parcel is not known, it is an unknown constant.
  • We can represent this unknown amount by using a letter like n.
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Substitution

What it means: Swapping a letter for a real number so you can solve the math puzzle.

  • Assigning a numerical value to an unknown term or a variable in an algebraic expression is called substitution.
  • For example, in the expression x + 6, if we substitute 2 for x, the answer is 8.
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Possessed

What it means: A fancy way of saying someone "owned" or "had" something.

  • Your lesson says "The number of books that Chalani originally possessed = 4". This just means she had 4 books to start with!
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Variable

What it means: A letter in a math problem that can change or stand for different numbers depending on the situation.

  • When you are doing substitution, you assign a number to a variable term to find the final value.
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Derelict

What it means: A person who is very poor, homeless, and needs our help.

  • In one of your math word problems, it asks you to represent the amount of money remaining after giving "Rs 10 to a derelict".
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Coefficient

What it means: The number attached to the front of a letter in algebra.

  • Your lesson talks about finding the value of an unknown of coefficient 1.
  • That just means the letter is all by itself (like x or y), instead of having a big number in front of it (like 5x)!