Decimals Operations

Rule for addition and subtaction of decimals.
#1 Line up the decimal points
#2 Add or subtract the digits in the same place-value positions.  Rename as necessary.
#3 Bring the decimal point straight down in the sum or difference.

Find 5.34  + 4.78

    5.34
 + 4.78       Line up the decimals
  10.12       Bring the decimal point straight down