Place Value & Rounding Worksheets — Math Worksheets for 3rd Graders
Rounding to the nearest 10 and 100, and estimating sums and differences.
5 topics, each with up to 15 printable worksheets and answer keys. Start with Rounding to the Nearest 10 and work down the list, or jump to the skill your child needs.
Rounding to the Nearest 10
Round numbers up to 999 to the nearest ten, including numbers that end in 5.
Rounding to the Nearest 100
Round three-digit numbers to the nearest hundred, including numbers that end in 50.
Rounding to the Nearest 10 or 100
Round numbers to the nearest 10 or the nearest 100, as each question says.
Estimating Sums
Round each number first, then add to estimate a sum.
Estimating Differences
Round each number first, then subtract to estimate a difference.
More 3rd grade math worksheets
Skip Counting & Patterns, Addition, Subtraction, Multiplication, Division, Order of Operations & Properties, Fractions, Measurement, Telling Time, Geometry: Shapes, Perimeter & Area, Data & Graphing, Word Problems