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Chunking

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Peter Rafferty

The document provides examples of dividing two-digit numbers by single-digit numbers. For each example, it highlights the times table being used, circles the number of groups, and shows the division worked out step-by-step by subtracting the appropriate multiple of the divisor from the dividend until reaching zero. The goal is to practice multi-digit division on a whiteboard using times tables.

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T ea w yt div he sy a o ide!
72 歎 4 = 18 18 4 72 we know 10 x 4 40 32 we know 8 x 4 32 0 We highlight the times table we are using. We circle the number of groups.
84 歎 6 = 14 14 6 84 we know 10 x 6 60 24 we know 4 x 6 24 0 We highlight the times table we are using. We circle the number of groups.
Try this one on your whiteboard 96 歎 6 = 16 16 6 96 we know 10 x 6 60 36 we know 6 x 6 36 0
Try this one on your whiteboard 112 歎 8 = 14 14 8 112 we know 10 x 8 80 32 we know 4 x 8 32 0
Try this one on your whiteboard 108 歎 6 =18 18 6 108 we know 10 x 6 60 48 we know 8 x 6 48 0
Try this one on your whiteboard 125 歎 5 =25 25 5 125 we know 10 x 5 50 75 we know 10 x 5 50 25 we know 5 x 5 25 0

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Chunking

  • 1. T ea w yt div he sy a o ide!
  • 2. 72 歎 4 = 18 18 4 72 we know 10 x 4 40 32 we know 8 x 4 32 0 We highlight the times table we are using. We circle the number of groups.
  • 3. 84 歎 6 = 14 14 6 84 we know 10 x 6 60 24 we know 4 x 6 24 0 We highlight the times table we are using. We circle the number of groups.
  • 4. Try this one on your whiteboard 96 歎 6 = 16 16 6 96 we know 10 x 6 60 36 we know 6 x 6 36 0
  • 5. Try this one on your whiteboard 112 歎 8 = 14 14 8 112 we know 10 x 8 80 32 we know 4 x 8 32 0
  • 6. Try this one on your whiteboard 108 歎 6 =18 18 6 108 we know 10 x 6 60 48 we know 8 x 6 48 0
  • 7. Try this one on your whiteboard 125 歎 5 =25 25 5 125 we know 10 x 5 50 75 we know 10 x 5 50 25 we know 5 x 5 25 0