Why use a number line for decimals?

A number line shows how big a decimal is and which numbers it sits between. It makes comparing and rounding visual: 3.2 is plainly closer to 3 than to 4.

Do 4th graders round decimals?

Rounding decimals is a 5th grade standard (5.NBT.A.4), but finding the nearest whole number on a number line is a natural 4th grade extension. The rounding page uses only a number line and the idea of closer to, with no rules to memorize.

Which standards do these worksheets support?

The number line pages support CCSS 4.NF.C.6 (decimal notation for tenths and hundredths, including locating decimals on a number line). The rounding page previews 5.NBT.A.4.

What decimal skills do 4th graders learn?

4th graders learn decimals as another way to write tenths and hundredths (CCSS 4.NF.C.6). They write fractions like 7/10 and 37/100 as 0.7 and 0.37, place decimals on number lines and grids, and compare two decimals to hundredths using >, < and = (4.NF.C.7). Money and metric lengths give the decimals everyday meaning.

How do you compare decimals in 4th grade?

Line up the decimal points and compare place by place from the left: ones, then tenths, then hundredths. Writing 0.5 as 0.50 makes it easy to see that 0.5 is greater than 0.47.

Do 4th graders add decimals?

Yes, in a limited way. They add tenths and hundredths by writing tenths as hundredths (3/10 + 4/100 = 34/100), which is 4.NF.C.5. Adding and subtracting decimals with the standard method is a 5th grade skill.

Is there an answer key for each worksheet?

Yes. Every one of the 30 new decimals sheets has an answer key, and the two page sheets have a two page key.

4th Grade Decimal Number Lines and Rounding Worksheets

Q: How do you show decimals on a number line?

Split the space between two whole numbers into 10 equal steps. Each step is one tenth, so the point 3 steps after 0 is 0.3. To show hundredths, zoom into one tenth and split it into 10 smaller steps.

Q: How do you compare decimals in 4th grade?

Line up the decimal points and compare place by place from the left: ones, then tenths, then hundredths. Writing 0.5 as 0.50 makes it easy to see that 0.5 is greater than 0.47.

Q: Do 4th graders add decimals?

Yes, in a limited way. They add tenths and hundredths by writing tenths as hundredths (3/10 + 4/100 = 34/100), which is 4.NF.C.5. Adding and subtracting decimals with the standard method is a 5th grade skill.

Q: Is there an answer key for each worksheet?

Yes. Every one of the 30 new decimals sheets has an answer key, and the two page sheets have a two page key.

Ages 9-10 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

Free printable decimal number lines and rounding worksheets for 4th grade students (Ages 9-10). Aligned to Common Core standards. Ready to print.

4th Grade Math Decimals Decimal number lines and rounding Clear All

$Decimal Number Lines to 2 - 4th Grade Decimals worksheet preview$

Decimal Number Lines to 2

Grade4th Grade

TopicDecimals

$Hundredths on a Number Line - 4th Grade Decimals worksheet preview$

Hundredths on a Number Line

Grade4th Grade

TopicDecimals

$Round Decimals to the Nearest Whole Number - 4th Grade Decimals worksheet preview$

Round Decimals to the Nearest Whole Number

Grade4th Grade

TopicDecimals

$Tenths on a Number Line - 4th Grade Decimals worksheet preview$

Tenths on a Number Line

Grade4th Grade

TopicDecimals

More decimals worksheets

Explore all of our 4th grade decimals worksheets, covering compare decimals, order decimals, decimal addition (1 digit), decimal addition (missing addend), and more.

Compare decimals Order decimals Decimal addition (1 digit)Decimal addition (missing addend)Decimal addition - 1 digit plus 2 digit Decimal addition - Some 2 digits Decimal addition in columns Decimal subtraction (1 digit)Decimal subtraction (1 or 2 digits)Decimal subtraction (missing number)Decimal subtraction in columns Decimals and money notation Adding and subtracting decimals word problems Adding decimals Comparing decimals Subtracting decimals Decimals and fractions Decimal place value Decimals in measurement

Frequently Asked Questions

Split the space between two whole numbers into 10 equal steps. Each step is one tenth, so the point 3 steps after 0 is 0.3. To show hundredths, zoom into one tenth and split it into 10 smaller steps.

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