Real Number Systems
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a natural number?
Back
A natural number is a positive integer starting from 1, used for counting (e.g., 1, 2, 3, ...).
2.
FLASHCARD QUESTION
Front
What is a whole number?
Back
A whole number is a non-negative integer, including zero (e.g., 0, 1, 2, 3, ...).
3.
FLASHCARD QUESTION
Front
What is an integer?
Back
An integer is a whole number that can be positive, negative, or zero (e.g., -2, -1, 0, 1, 2).
4.
FLASHCARD QUESTION
Front
What is a rational number?
Back
A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero (e.g., 1/2, 3, -4).
Tags
CCSS.5.NBT.A.2
5.
FLASHCARD QUESTION
Front
What is an irrational number?
Back
An irrational number cannot be expressed as a simple fraction; its decimal representation is non-repeating and non-terminating (e.g., √2, π).
Tags
CCSS.8.NS.A.1
6.
FLASHCARD QUESTION
Front
What is the real number system?
Back
The real number system includes all rational and irrational numbers, representing all possible values along the number line.
7.
FLASHCARD QUESTION
Front
What does PEMDAS stand for?
Back
PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Tags
CCSS.6.EE.A.1
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