Subtraction Is Easy.

Duration: 11 min.

Year Published: 1948

Format: 16mm

Color: B&W

Sound: sound

Description: Explains how to do subtraction, and demonstrates the application of subtraction to everyday life.

Complete Record: SUBTRACTION IS EASY. Coronet, c1948. 11 min., sd., b&w, 16mm. Summary: Explains how to do subtraction, and demonstrates the application of subtraction to everyday life. Credits: Educational collaborator, F. Lynwood Wren. © David A. Smart; 9Dec48; MP3720.

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