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← Class 4 Mathematics

Class 4 · English Medium · Pearson Edexcel · Mathematics

Place value, rounding and estimation

Explore place value, rounding and estimation with an example and your own answers.

About this lesson and its coverage

Original Kidemy foundation practice · Read the example, write your answers, then check. This starter is shared across class versions; it is not a complete board-specific lesson or course.

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Learn the idea

Place value extends to thousands and beyond. Round to a useful size before estimating; an estimate helps check an exact calculation.

Worked example

4,376 rounds to 4,400 to the nearest hundred. An estimate for 4,376 + 2,183 is 4,400 + 2,200 = 6,600.

  1. Read the example and explain which rule or evidence it uses.
  2. Try each task yourself, then compare the answer and its reason.

Your written practice

Show your working on paper. Check your answer, then choose Next.

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7000

Seven is in the thousands place.

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6200

The tens digit is four, so round down.

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600

Four hundred plus two hundred gives the estimate.

Take it further

Apply the idea in a new situation and explain your method. Open writing needs a guardian or teacher to review it.

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39000

The hundreds digit is six, so round up.

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1500

2,800−1,300=1,500.

Write in your own words. A guardian or teacher should review this response.

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No. The exact sum is 7,000; 700 is far below the size of both addends together.

Compare place value and approximate size.

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