Problem 436 Name each decimal. $$ -31.4 ... [FREE SOLUTION]

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Chapter 1: Problem 436

Name each decimal. $$ -31.4 $$

Short Answer

Expert verified

-thirty-one point four

Step by step solution

Identify the Whole Number Part

Separate the number into its whole number and decimal parts. In this case, the whole number part is -31.

Identify the Decimal Part

Identify the digits after the decimal point. Here, the decimal part is .4.

Combine Whole Number and Decimal

Combine the whole number part and the decimal part to read the number as '-thirty-one point four.'

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Key Concepts

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

Whole Number

Numbers can have different parts, and one of the main parts is the whole number. The whole number is the part that does not have any decimals or fractions. It is the main number part you see before the decimal point.
For example, in the number -31.4, the whole number part is -31. The minus sign indicates it is a negative number.

Whole numbers can be positive, negative, or zero.
To spot the whole number part in any decimal number, just look to the left of the decimal point.

In 45.67, the whole number is 45.
In -9.812, the whole number is -9.

Recognizing the whole number is simple and essential to understanding decimal numbers better.

Decimal Part

The decimal part of a number comes after the decimal point. It represents a value less than 1. It is a fraction shown in a special format.

In the number -31.4, the decimal part is .4. This part shows you the small, fractional value that follows the whole number.

Each digit in the decimal part tells us about tenths (0.1), hundredths (0.01), thousandths (0.001), and so on.

In 0.75, the decimal part is 75, which is the same as $\frac{75}{100}$ or $\frac{3}{4}$.
In -2.468, the decimal part is 468, which means 468 thousandths or $\frac{468}{1000}$.

Identifying and understanding the decimal part makes it easier to work with decimal numbers. It shows us that they are not just big or small whole numbers but can have fine precision.

Combining Decimals

When you read or write decimal numbers, you often combine the whole number and the decimal part seamlessly.

For our example -31.4, we combine the whole number (-31) and the decimal part (.4) to read it as '-thirty-one point four.' It is important to include the 'point' to indicate that you are now referring to the decimal part.

For 45.67, you read it as 'forty-five point sixty-seven.'
For -9.812, you read it as 'negative nine point eight one two.'

Combining the whole number and the decimal part correctly helps you understand the complete value. It allows you to express numbers more accurately and read them without confusion. This is crucial in many areas like science, engineering, and everyday calculations.

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91影视

Name each decimal. $$ -31.4 $$

Short Answer

Step by step solution

Identify the Whole Number Part

Identify the Decimal Part

Combine Whole Number and Decimal

Key Concepts

Whole Number

Decimal Part

Combining Decimals

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