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Games, Ideas and Activities for Primary Mathematics, 2nd Edition by Mr. John Dabell

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Chapter 5

Division

Digital roots

Digital roots is an activity to help children improve their division, reasoning and explanation skills.

Suitable for

KS2

Aims

  • To divide a range of 2-digit numbers by a 1-digit number.
  • To refine pencil-and-paper methods.

Players

  • This is an activity for two players

Resources

  • Two sets of 1–9 digit cards
  • Paper and pencils
  • Calculator

What to do

  • Give each pair a set of 1–9 digit cards.
  • Players shuffle the cards and then take two to make a 2-digit number. For example, 59.
  • Players then find the digital root of this number. For example, 5 + 9 = 14, 1 + 4 = 5.
  • When the digital root has been found, players then divide 59 by this number. So, 59 ÷ 5 = 11 remainder 4 or remainder .
  • Play continues like this and ...

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