Addition Worksheets — Math Worksheets for 3rd Graders
Adding within 1,000: three and four 3-digit numbers in columns, and making 1,000.
3 topics, each with up to 15 printable worksheets and answer keys. Start with Add Three 3-Digit Numbers in Column and work down the list, or jump to the skill your child needs.
Add Three 3-Digit Numbers in Columns
Add three 3-digit numbers stacked in columns, with sums up to 1,000.
Add Four 3-Digit Numbers in Columns
Add four 3-digit numbers stacked in columns, with sums up to 1,000.
Make 1,000
Find how many more it takes to reach 1,000, like 620 + __ = 1000.
More 3rd grade math worksheets
Place Value & Rounding, Skip Counting & Patterns, Subtraction, Multiplication, Division, Order of Operations & Properties, Fractions, Measurement, Telling Time, Geometry: Shapes, Perimeter & Area, Data & Graphing, Word Problems