Pre-Algebra: Decimals Help and Practice Problems

Find study help on decimals for pre-algebra. Use the links below to select the specific area of pre-algebra decimals you're looking for help with. Each guide comes complete with an explanation, example problems, and practice problems with solutions to help you learn decimals for pre-algebra.

Study Guides

showing 1 - 10 of 29
  • 1.

    Naming Decimals Help

    Naming Decimals As with whole numbers, each digit of a decimal has a place value . The place value names are shown in Fig. 5-1 .

  • 2.

    Rounding Decimals Help

    Rounding Decimals Decimals are rounded the same way as whole numbers are rounded. To round a decimal to a specific place value, first locate that place value digit in the number. If the digit to the right is ...

  • 3.

    Addition of Decimals Help

    Addition of Decimals In order to add two or more decimals, write the numbers in a column placing the decimal points of each number in a vertical line. Add the numbers and place the decimal point in the sum directly under the other decimal ...

  • 4.

    Subtraction of Decimals Help

    Subtraction of Decimals Subtracting decimals is similar to adding decimals. To subtract two decimals, write the decimals in a column, placing the decimal points in a vertical line. Subtract the numbers and ...

  • 5.

    Multiplication of Decimals Help

    Multiplication of Decimals To multiply two decimals, multiply the two numbers, disregarding the decimal points, and then count the total number of digits to the right of the decimal points in the two numbers. Count the same number of ...

  • 6.

    Division of Decimals Help

    Division of Decimals When dividing two decimals, it is important to find the correct location of the decimal point in the quotient. There are two cases. Case 1. To divide a decimal by a whole number, ...

  • 7.

    Comparing Decimals Help

    Comparing Decimals To compare two or more decimals, place the numbers in a vertical column with the decimal points in a straight line with each other. Add zeros to the ends of the decimals so that they all have the same number of decimal ...

  • 8.

    Decimals in Word Problems Help

    Decimals in Word Problems To solve a word problem involving decimals, follow the procedure : Read the problem carefully. Identify what you are being asked to find. Perform the ...

  • 9.

    Changing Fractions to Decimals Help

    Changing Fractions to Decimals A fraction can be converted to an equivalent decimal. For example

  • 10.

    Changing Decimals to Fractions Help

    Changing Decimals to Fractions To change a terminating decimal to a fraction, drop the decimal point and place the digits to the right of the decimal in the numerator of a fraction whose denominator corresponds to the place value of the ...

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