representing, Comparing, and ordering decimals - Lesson

Representing, Comparing, and ordering decimals

By Ron Schroeder

decimal numbers represent combinations of whole numbers and numbers between whole numbers.

Place Value can help you understand , write, and compare decimal numbers.​

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Place Value

​Reading and Writing Decimals

Write the decimal in standard form, expanded form, and words.

​ Standard form: 1.05

Expanded Form: 1 + 0.05

Word Form: one and five hundredths​

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Standard Form: 0.0517

​ Expanded Form: 0.05 + 0.001 + 0.0007

Word Form: five hundred seventeen ten-thousandths​

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Comparing and Ordering Decimals

Order the decimals from least to greatest. 13.25, 13.2, 13.04

1. Compare two of the numbers at a time.

2. Start at the left and compare the digits.

3. Look for the first place where the digits are different.

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13.25 > 13.20 13.25 > 13.04​ 13.20 > 13.04

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​​ 13.04 13.2 13.25

​​13 13.1 13.2 13.3 13.4 13.5 13.6 13.7

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Draw

Order the decimals from least to greatest and put on a number line. 9.5, 9.35, 9.65

Draw

Order the decimals from least to greatest and put on a number line. 4.18, 4.1, 4.09