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5th Grade Estimation Worksheets

Give your students practice with estimating numbers using money, decimals, and estimating sums.


  • Choosing Units of Measure
  • In this math worksheet, students circle the units that are the closest estimate for each measurement. Students need mental benchmarks for each U.S. customary unit in order to choose the best unit of measure.

  • Estimating Differences of Money
  • This subtraction worksheet demonstrates how students can use rounding to estimate differences. Students must round the leading digit of a decimal number before subtracting to estimate the difference. The second section contains horizontal subtraction problems; students need to estimate by rounding mentally.

  • Estimating Products
  • Encourage students to estimate each answer mentally. Students will round the leading digit to estimate the product of each horizontal multiplication problem, in this math worksheet.

  • Estimating Quotients
  • To estimate each quotient, students round the dividend to a compatible number (a multiple of the divisor). Then, they apply their knowledge of basic division facts to divide using mental math.

  • Estimating Sums and Differences
  • To complete the first part of this math worksheet, students round the numbers to the leading digit, then estimate the sum or difference. In the second section, students round numbers, add, subtract, and compare values to determine if each sum or difference is less than or greater than the given number.

  • Estimating Sums of Money
  • Demonstrate how students can use rounding to estimate sums. In this addition worksheet, students round the leading digit of a decimal number before adding to estimate the sum. The second section contains horizontal addition problems; students need to estimate by rounding mentally.

  • Rounding Decimals to the Nearest Tenth
  • The decimals in this worksheet go to the hundredths place. Have students round each one to the nearest tenth. The concept of .05 is introduced in the second section.

  • Rounding Decimals to the Nearest Whole Number
  • Have students apply their knowledge of place value to round each decimal to the nearest whole number. This rounding worksheet includes sections on two-digit, three-digit, and four-digit numbers. In some cases, children will need to alter the tens digit or hundreds digit in a number.

  • Rounding Mixed Numbers
  • Help students understand when to round up and when to round down. First, students practice recognizing fractions that are more than or less than 1⁄2; then, they round mixed numbers to the closest whole number.

  • Rounding Money
  • This math worksheet provides practice rounding amounts of money to the nearest dollar, ten dollars, or hundred dollars. Use this printable to review decimals, place value, and rounding.

  • Rounding Whole Numbers
  • Students round each whole number to the nearest ten, hundred, thousand, or ten-thousand in this math worksheet. Remind students if the place to the right of the place they are rounding is 5, round to the number above.

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