IXL | Compare, order, and round decimals: word problems

Brett needs a new collar for his chihuahua puppy. He wants the thinnest collar he can find. This table shows the thickness of 3 different collars he found online.

Collar color	Thickness (centimeters)
blue	1.2
purple	1.4
green	1.1

Which color collar is the thinnest?

blue

purple

green

ref_doc_title.

Learn with an example

question

The rate at which a person's fingernails grow depends on the person's age and gender. In older men, nails grow about 0.669 millimeters in ten days. In older women, nails grow about 0.664 millimeters in ten days.

Whose nails grow more in ten days?

older men

older women

solution

You need to compare the older men's nail growth of 0.669 millimeters and the older women's nail growth of 0.664 millimeters.

Use a place value chart to compare the numbers. Line up the decimal points and compare the digits from left to right.

ones

tenths

hundredths

thousandths

The first place the numbers are different is in the thousandths place. So, compare the thousandths digits.

9 is greater than 4, so 0.669 is greater than 0.664.

The older

men's

nails grow more in ten days.

Looking for more? Try these:

Lesson: Comparing decimals

Lesson: Rounding decimals

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Questions
answeredQuestions

Time
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SmartScore
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Teacher tools

Work it out

Not feeling ready yet? These can help:

W.9Round decimals

X.4Compare decimal numbers

X.5Put decimal numbers in order

Lesson: Comparing decimals

Lesson: Rounding decimals

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