
MCA Review #4 Numbers and Operations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are consecutive numbers?
Back
Consecutive numbers are numbers that follow each other in order, without any gaps. For example, 4 and 5, or 6 and 7.
2.
FLASHCARD QUESTION
Front
What is a rational number?
Back
A rational number is any number that can be expressed as a fraction or a decimal that either terminates or repeats.
3.
FLASHCARD QUESTION
Front
What is an irrational number?
Back
An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.
4.
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). It is the order of operations used to solve mathematical expressions.
5.
FLASHCARD QUESTION
Front
How do you solve an expression using PEMDAS?
Back
Follow the order of operations: first solve anything in parentheses, then exponents, followed by multiplication and division from left to right, and finally addition and subtraction from left to right.
6.
FLASHCARD QUESTION
Front
What is the result of 3 + 5 × 2 using PEMDAS?
Back
The result is 13. First, multiply 5 × 2 = 10, then add 3 + 10 = 13.
7.
FLASHCARD QUESTION
Front
What is the result of (8 - 3) × 2?
Back
The result is 10. First, solve the parentheses: 8 - 3 = 5, then multiply: 5 × 2 = 10.
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