A: ### Quick Answer

The value of an underlined digit in a given number expresses how much that digit is worth. To determine the digit’s value, multiply it by its place value. The underlined figure tells how many sets of the place value there are in the number.

Know MoreIf seven is underlined in 751, seven must be multiplied to 100, since it is in the hundredth place. There are seven sets of hundreds in the number. Therefore, the value of seven in 751 is 700. In the same number, if one is underlined, the value is also one, since it represents only one set in the place of one.

Learn more about Arithmetic- Q:
## What is the divisibility rule for 7?

A:

Full Answer >**The divisibility rule for 7 dictates that a number is divisible by 7 if subtracting 2 times the digit in the one's column from the rest of the number, now excluding the one's column digit, yields a number that is divisible by 7 or 0.**Divisibility rules are simple rules that can be used to quickly determine if a number is divisible by a smaller number without a calculator.Filed Under: - Q:
## How are integers added?

A:

Full Answer >**Integers with the same sign are added and the sum takes the sign of the integers, while integers with different signs are subtracted and the difference takes the sign of the number with the highest absolute value.**The set of integers include all the counting numbers, zero and the negatives of the counting numbers.Filed Under: - Q:
## When would you use integers as an absolute value in a real-life situation?

A:

Full Answer >**An example of using an integer as an absolute value in real life is describing the distance, to or from something, using a whole number.**For instance, someone would say they are 5 miles from Tucson or 5 miles past Tucson. In both cases, the person would be describing the distance as a positive number.Filed Under: - Q:
## How do you convert hex to decimal?

A:From right to left, take each digit in the base 16 number and multiply it by 16^n, where "n" is the number of places to the left of the rightmost digit, then sum the results together to get the base 10, or decimal, value. For the rightmost digit, n is 0.

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