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Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
For industry shop and field personnel who use practical mathematics on the job, this book reinforces basic and intermediate math skills. Covers numbers, hand calculators, number relations such as percentages and proportions, and physical quantities and measurement. Also reviews the principles of algebra, practical geometry, basic trigonometry, and advanced industry applications. Chapters include objectives, howto information, practice problems, tests, and answers. Appendices offer reference tables, commonly used formulas, and conversion factors.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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