This is a collection of our adding decimals worksheets to supplement your lessons. It includes numbers up to tenths, hundredths, and thousandths. You can use these for review, practice, pre-test, assessment, or quiz for 4th, 5th, and 6th grades. Types of Activities or Problems: Add the Decimals (Vertically Aligned)Decimal Addition (Vertically Aligned, Boxed Digits)Use the Grid to Add the DecimalsFind the Sum, Show SolutionSolve for the Missing Addend, Show SolutionFill in the Blanks (Missing Ad