by Christine Addison
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Arithmetic, Mental · Examinations, questions
Nelson Mental Maths
1980
Arithmetic · Arithmetic, Mental
Mental arithmetic
1899
Arithmetic, Mental · Mental arithmetic
1998
1919
Mental arithmetic · Congresses
Computational alternatives for the twenty-first century
1994
Check it again
1979
Test your child's mental arithmetic
1989
O & B mentalarithmetic bank
1984
Mental maths
collectionID:elmmath · collectionID:MidMath
Essential Maths
1996
Mental Arithmetic · Examinations, questions
Mental Arithmetic
1976
Arithmetic · Early works to 1900
1878
Early works to 1900 · Arithmetic
Intellectual arithmetic
1826
How to calculate quickly
1955
Mathematics · Problems, exercises
Mental mathematics for the numeracy hour
2000
Reasoning · Mental arithmetic
Mental Computation and Estimation
2015
Early works to 1900 · Mental arithmetic
The American intellectual arithmetic
1849
