Rounding Multi-Digit Numbers Worksheets for 4th Grade

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Grade 4MathPlace Value & RoundingCCSS 4.NBT.A.3

Skill: Rounding whole numbers to the nearest 1,000, 10,000, and 100,000

Preview of the Rounding Multi-Digit Numbers printable worksheet
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Teaching tips and what to try next

Fourth graders should already round to the nearest 10 and 100 and read numbers into the hundred thousands before trying this. Rounding is most useful for checking work, so after the sheet have your child round two big numbers, add them, and compare with the exact sum. Review with Rounding to the Nearest 10 and 100 or Place Value to the Millions, then estimate answers in Multi-Digit Addition and Subtraction.

10 versions, each with its own answer key

Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).

Download all 10 versions (one PDF)All 10 answer keys (PDF)

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About this worksheet

Rounding makes big numbers easier to estimate and compare. In fourth grade, students round whole numbers up to one million to any place. This fourth-grade worksheet gives eighteen rounding problems that move from thousands to hundred thousands, using numbers with commas so students practice reading them too.

In Part A, students round five-digit and smaller numbers to the nearest thousand, such as 47,618 to 48,000. In Part B, they round to the nearest ten thousand, such as 263,400 to 260,000. In Part C, they round six-digit numbers to the nearest hundred thousand, such as 749,999 to 700,000. Each part includes one number exactly halfway, such as 35,500, which rounds up by the usual rule. When a 9 rounds up, the digits to its left change too, such as 99,600 rounding to 100,000. The ten versions use new numbers.

How to use it: teach students to underline the digit in the place they are rounding to and circle the digit just to its right. If the circled digit is 5 or more, the underlined digit goes up by one; if it is 4 or less, it stays the same. Every digit after the underlined one becomes zero. A quick number line sketch with the two nearest thousands at each end shows why the rule works. Watch for students who change the digits to the left of the rounding place; those should stay the same unless a 9 rounds up.

The answer key lists every rounded number. This worksheet supports Common Core standard 4.NBT.A.3. Review with our Rounding to the Nearest 10 and 100 worksheet and our Place Value to the Millions worksheet.