. Key to the Exercises in algebra, for the use of the teacher. ^ TO THE ^ M EXERCISES IN ALGEBRA, USEOF THE TEACHER BY PRAXCIS J. GRUND, Author of an Elementary Treatise on Plane and Solid GeometrElementary Treatise on Natural Philosophy, Elementsof Chemistry, Popular Lessons in Astronomy,translator of Meier Hirschs Problems, etc. icr;^ ^1 f BOSTON:CARTER, HENDEE AND CO 1833. .e^- Entered according to act of Congress, in the year 1833, By Francis J. Grund, in the clerks office of the District Court of Massachusetts. /^:2^. I. R. BUTTS, PRINTER, SCHOOL ST. C^ ^-^ KEY EXERCISES IN ALGEBRA. SECTI
. Key to the Exercises in algebra, for the use of the teacher. ^ TO THE ^ M EXERCISES IN ALGEBRA, USEOF THE TEACHER BY PRAXCIS J. GRUND, Author of an Elementary Treatise on Plane and Solid GeometrElementary Treatise on Natural Philosophy, Elementsof Chemistry, Popular Lessons in Astronomy,translator of Meier Hirschs Problems, etc. icr;^ ^1 f BOSTON:CARTER, HENDEE AND CO 1833. .e^- Entered according to act of Congress, in the year 1833, By Francis J. Grund, in the clerks office of the District Court of Massachusetts. /^:2^. I. R. BUTTS, PRINTER, SCHOOL ST. C^ ^-^ KEY EXERCISES IN ALGEBRA. SECTION I. ANSWERS TO THE EXERCISES IN ADDITION, SUBTRACTION, MULTIPLICATION, AND DIVISION. A. Answers to the Exercises in Addition. a, ADDITION OF SIMPLE QUANTITIES. 1. Ans. 2 a. 2. A ns. 14 a. 3. 6 6. 4. 6/ 5. a-\-b. 6. 7a+10 6. 7. 0. 8. 11 a. 9. — a. 10. a — b. 11. 8 a —5 b. 12. —7a + b 13. — 17 a. 14. — 12 a. 15. 8a + Sb. 16. 6 a. 17. -15/ 18. —3 6. 19. — 15 c. 20. 5d. 21. * 22. 0. 23. Ans. So. 24. Ans. 6. 25. Qa 26. 5 a + 4 6. 27. ^ 10
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