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Practical Exercises in Mental Arithmetic
This book provides a series of practical exercises designed to help students improve their mental ar... more |
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Practical Exercises in Mental Arithmetic
This book provides a series of practical exercises designed to help students improve their mental ar... more |
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A bibliography of history for schools and libraries
bibliography of history for schools and libraries", by Charles McLean Andrews, J. Montgomery Gambrill, Lida Lee Tall, is a...... more |