John Duncan

21 published titles

Mechanical arithmetic. Book 1

1 edition

Mechanical arithmetic. Book 1 answers

1 edition

Mechanical arithmetic. Book 2

1 edition

Mechanical arithmetic. Book 2 answers

1 edition

Mechanical arithmetic. Book 3

1 edition

Mechanical arithmetic. Book 3 answers

1 edition

Mechanical arithmetic. Book 4 answers

1 edition

Mechanical arithmetic. Book 5

1 edition

Mechanical arithmetic. Book 5 answers

1 edition

Collins functional arithmetic. Book 1, 7-8 years (with mental arithmetic

1 edition

Collins functional arithmetic. Book 1 answers

1 edition

Collins functional arithmetic. Book 2, 8-9 years (with mental arithmetic)

1 edition

Collins functional arithmetic. Book 2 answers

1 edition

Collins functional arithmetic. Book 3, 9-10 years (with mental arithmetic)

1 edition

Collins functional arithmetic. Book 3 answers

1 edition

Collins functional arithmetic. Book 4, 10-11 years (with mental arithmetic)

1 edition

Collins functional arithmetic. Book 4 answers

1 edition

Collins functional arithmetic. Book 5, 11-12 years (with mental arithmetic)

1 edition

Collins functional arithmetic. Book 5 with answers

1 edition

New mental arithmetic

1 edition

New mental arithmetic, by John Duncan. [1st ed.], 7th and revised impression; revised by Helen Cline. Answers

1 edition