How to use this sheet

  • For each number, have the child name the two tens or hundreds it is between before rounding.
  • Use the number lines on the sheet: mark the number and see which end it is closer to.
  • Underline the place you round to and circle the digit to its right. Only the circled digit decides.

Common mistakes

  • Rounding 45 down to 40. A 5 rounds up: 45 is rounded to 50.
  • Changing every digit after the rounding place to 9, or leaving them as they are. They all become zeros.
  • Looking at the wrong digit, such as the ones digit when rounding to the nearest hundred. The digit just right of the rounding place decides.
  • Forgetting that rounding up can change more than one digit, as when 296 rounds to 300.

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