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Divisibility by 10:
How do you know that a number is divisible by 10? Well, a number is divisible by 10 if the last digit of a given number is 0.
Example 1:
The first thing that we need to do is to inspect the given number if it is divisible by 10 or not.
Since the last digit of a given number is not 0, then the given number is not divisible by 10. There's a remainder of 5 in the division. The answer or a quotient must be a whole number itself. You should not have a fraction or a remainder in the final answer.
Example 2:
The first thing that we need to do is to inspect the given number if it is divisible by 10 or not.
Since the last digit of a given number is 0, then the given number is divisible by 10. There's no remainder or a fraction in the division.
You should consider in studying the divisibility of a number because you will use these principles later when you will study higher Math subjects that involves the division of a number, simplifying fractions, and even factoring.
This method can also be used for negative integers as long as the last digit of a given number is 0. Again, there should be no remainder or a fraction in the division.