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If the last 2 digits of a number can be divided by 4, then the number is divisible by 4. If the last 3 digits of a number can be divided by 8, then the number is divisible by 8. To determine if a number is divisible by 11, first get the alternating sum of the digits. Then, find the difference between the sums. If the difference is 0 or can be divided by 11, then we say that the number is divisible by 11. Lastly, if a number can be divided by both 3 and 4, then the number is divisible by 12.
A problem can be a routine and non-routine problem. If it is a routine problem, use the 4-step plan and if it is a non-routine problem, you can use any method to get the answer.
Operations - refer to Mathematical process, the operations are addition, subtraction, multiplication, and division (+, -, x, /)
Series of numbers - set of numbers with different operations
Order of operation - Mathematics agreed upon certain rules for solving Math
PMDAS - is a mathematical acronym to help you understand how calculations work. It stands for Parenthesis, Multiplication, Division, Addition, and Subtraction.
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