If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit: Understand decimals

Not feeling ready for this? Check out Get ready for 4th grade.

0

Possible mastery points

Decimal fractions

Learn
Writing a number as a fraction and decimal
(Opens a modal)
Practice
Write decimals and fractions shown on gridsGet 3 of 4 questions to level up!
Write decimals and fractions shown on number linesGet 3 of 4 questions to level up!

Decimal fractions greater than 1

Learn
Writing decimals and fractions greater than 1 shown on grids
(Opens a modal)
Writing decimals and fractions shown on number lines
(Opens a modal)
Practice
Write decimals and fractions greater than 1 shown on gridsGet 3 of 4 questions to level up!
Write decimals and fractions greater than 1 shown on number linesGet 3 of 4 questions to level up!

Writing fractions as decimals

Learn
Rewriting fractions as decimals
(Opens a modal)
Practice
Write fractions as decimals (denominators of 10 & 100)Get 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 500 Mastery points

Decimals in word form

Learn
Decimals as words
(Opens a modal)
Relating decimals and fractions in words
(Opens a modal)
Decimal place value
(Opens a modal)
Practice
Decimals in wordsGet 3 of 4 questions to level up!
Relate decimals and fractions in wordsGet 3 of 4 questions to level up!

Decimals on the number line

Learn
Graphing tenths from 0 to 1
(Opens a modal)
Identifying tenths on a number line
(Opens a modal)
Graphing hundredths from 0 to 0.1
(Opens a modal)
Identifying hundredths on a number line
(Opens a modal)
Plotting decimal numbers on a number line
(Opens a modal)
Practice
Decimals on the number line: tenths 0-1Get 3 of 4 questions to level up!
Decimals on the number line: tenthsGet 3 of 4 questions to level up!
Decimals on the number line: hundredths 0-0.1Get 3 of 4 questions to level up!
Decimals on the number line: hundredthsGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 600 Mastery points

Regrouping decimals

Learn
Decimal place value with regrouping
(Opens a modal)
Practice
Decimal place value with regroupingGet 5 of 7 questions to level up!

Writing decimals as fractions

Learn
Rewriting decimals as fractions: 0.8
(Opens a modal)
Rewriting decimals as fractions: 0.15
(Opens a modal)
Rewriting decimals as fractions: 0.36
(Opens a modal)
Rewriting decimals as fractions: 2.75
(Opens a modal)
Writing decimals as fractions review
(Opens a modal)
Practice
Write decimals as fractionsGet 5 of 7 questions to level up!

Common fractions and decimals

Learn
Common fractions and decimals
(Opens a modal)
Practice
Write common decimals as fractionsGet 5 of 7 questions to level up!
Write common fractions as decimalsGet 5 of 7 questions to level up!

Quiz 3

Level up on the above skills and collect up to 400 Mastery points

Comparing decimals visually

Learn
Comparing decimals visually
(Opens a modal)
Comparing decimal numbers on a number line
(Opens a modal)
Comparing numbers represented different ways
(Opens a modal)
Practice
Compare decimals visuallyGet 5 of 7 questions to level up!
Compare decimals and fractions in different formsGet 3 of 4 questions to level up!
Order decimals and fractions in different formsGet 3 of 4 questions to level up!

Comparing decimals

Learn
Comparing decimals (tenths and hundredths)
(Opens a modal)
Practice
Compare decimals (tenths and hundredths)Get 5 of 7 questions to level up!

Quiz 4

Level up on the above skills and collect up to 400 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1900 Mastery points!