PlaceValue.net
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Place Value of 4 in 21.409

Decimal place value starts at the decimal point and moves to the right. The first digit is tenths, the second is hundredths, and the third is thousandths.

Always start counting from the decimal point → right side only
Answer
In 21.409, the digit 4 is in the Tenths place.
Its value is 0.4.
How we find it
1) Find the decimal point.
2) Count digits to the right until you reach 4.
3) That position gives the place name.
4) Write the value using zeros.
Decimal place value chart
DigitPlace
4 Tenths
0 Hundredths
9 Thousandths
Try your own decimal number
More decimal practice
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Place value of 4 in 98.574
Hint: Count from the decimal point to the right.