 Halving to 12 (Gillian Miller)  - Doubling and Halving Machines
 (Shirley Lehmann) 
- Halving (Shirley Lehmann)
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- Doubling (Shirley Lehmann)
- Halving and Doubling (Shirley Lehmann)
- Doubles Butterflies (Jen Knill) DOC
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 Halves Dice (Alison Timbey/GP)   - Double Dominoes (Alison Timbey/GP)
- Doubling and Halving (Geoff Magee)
- Doubling to 10 (Serena Solomon)
 Doubling and Halving (Richard Hough) |
- Double Dominoes Cards (Alison Timbey) PDF
- Halves Dice Cards (Alison Timbey) PDF
- Doubling and Halving (Geoff Magee) DOC
- Doubles Bubble (Carly Pitman)
- Doubles Game (Jennifer Gibbs) DOC
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- Doubling/Halving (Rachael Wilkie)
- Doubling/Halving Starter (Rachael Wilkie)
- Partitioning to Double (3 levels) (Naomi Hass) DOC
- Doubling to 20 (Deb Cadman) PDF
- Double Bingo (Nadine Turner) PDF
 Halving by Partitioning (Jayne Reeder) DOC- Double - Half (Andrew Woodcock) XLS
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- Near Doubles (Rachael Wilkie)
- Finding quarters by halving (Rachael Wilkie)
- Doubles and Near Doubles Cards (Hermione Ruck Keene) DOC
- Halving and Doubling (Steph Fell) PDF
- Doubling/Halving (by partitioning) (Kirsty Router)
- Halving (up to 20) (Laura Christmas) DOC
- Double - Half (Andrew Woodcock)
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- Double & Halve by partitioning (Jennifer Till)
- Doubles and Halves (Nicola McGivern)
- Halving Numbers 1 (Mandy Smith) DOC
- Find Quarters (Mandy Smith) DOC
 Multiplying by 20 by doubling (Arthur Daley) PDF- Doubling Numbers (Mandy Smith) DOC
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- Doubling x4 to find x8 (Louise Ward) DOC
- Halving (Sian Carr) DOC
- Quartering (Sian Carr) DOC
- Doubles Magic Bubble (Maria Buchanan)
- Halving Numbers 2 (Mandy Smith) DOC
- Halving Numbers (Andrew Woodcock) XLS
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- Near Doubles (Lisa Heap) PDF
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 Doubles Game (Vicki Foy) PDF |
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