Problem 545 Name each decimal. $$ -17.9 ... [FREE SOLUTION]

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Chapter 1: Problem 545

Name each decimal. $$ -17.9 $$

Short Answer

Expert verified

-17.9

Step by step solution

Identify the Whole Number

In the number -17.9, identify the whole number part. Here, the whole number is -17.

Identify the Decimal Part

In the number -17.9, the decimal part is the digit to the right of the decimal point. Here, it is 9.

Put Them Together

Combine the whole number part and the decimal part using the decimal point. The number -17.9 has a whole number part of -17 and a decimal part of 9.

Write the Decimal

The decimal can be written directly as -17.9, where the whole number is -17 and the decimal part is 9.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Whole Numbers

Whole numbers are simple, non-fractional numbers. They include all the positive numbers from 0 onwards (0, 1, 2, 3, ...). They do not include any decimal or fractional parts.

In the exercise example, our whole number is -17. Although it鈥檚 negative, -17 is still considered a whole number because it isn't broken into fractions or decimals.

Decimal Parts

Decimals are numbers that have a fractional part, separated from the whole number by a decimal point. The decimal part comes after the dot.

In our example, the decimal part of -17.9 is the digit 9. This digit represents a portion less than 1 of the whole number.
For instance, if you have -17.9 dollars, you have 17 dollars and 90 cents (because 0.9 is the same as 90 hundredths of a dollar).

Combining Numbers

When dealing with decimals, it's crucial to understand how to combine both the whole number and the decimal part.
If we take the whole number -17 and the decimal part 9, we combine these by placing a decimal point between them to form -17.9.

Remember:

The number to the left of the decimal is the whole number part.
The number to the right of the decimal is the decimal part.

This way, -17 combines with 0.9 to give us the complete number -17.9.

Negative Numbers

Negative numbers are less than zero. They are typically represented with a minus (-) sign. They are found to the left of zero on a number line.

In the given example, -17.9 is a negative number because it is less than zero. The negative sign in front of 17.9 tells us that it is below zero.
It's crucial to remember the negative sign when naming or writing the decimal, as it significantly changes the value of the number.
Without it, -17.9 would simply be 17.9, which is a completely different value. Therefore, be mindful of negative signs!

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91影视

Name each decimal. $$ -17.9 $$

Short Answer

Step by step solution

Identify the Whole Number

Identify the Decimal Part

Put Them Together

Write the Decimal

Key Concepts

Whole Numbers

Decimal Parts

Combining Numbers

Negative Numbers

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