Greater than ( $$>$$ ) vs. Less than ( $$

latex="a > b"> means $$a$$ is larger; $$a

Greater than or equal to ( $$\geq$$ )

is more than or equal to another

Less than or equal to ( $$\leq$$ )

is less than or equal to another

Pi symbol ( $$\pi$$ )

3.14159..., ratio of circle’s circumference to diameter

Summation symbol ( $$\sum$$ )

of a sequence, e.g., $$\sum_{i=1}^{n} i$$

Parentheses ( $$()$$ ) vs. Brackets ( $$[]$$ )

group terms; parentheses used first in order of operations

Common mistake: $$a^2 + b^2 \neq (a + b)^2$$

latex="(a + b)^2 = a^2 + 2ab + b^2">

Real-world use: Percent symbol ( $$\%$$ )

in discounts, interest rates, statistics

Proportional to symbol ( $$\propto$$ )

one quantity changes with another

Understanding Math Symbols Flashcards

Student preview

20 questions

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1.

FLASHCARD QUESTION

Front

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operation

2.

FLASHCARD QUESTION

Front

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operation

3.

FLASHCARD QUESTION

Front

Back

of numbers

4.

FLASHCARD QUESTION

Front

Back

of numbers

5.

FLASHCARD QUESTION

Front

Back

two expressions are the same

6.

FLASHCARD QUESTION

Front

Back

two values are different

7.

FLASHCARD QUESTION

Front

Back

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