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IN

A RITHMETIC

BY

S. W. BAIRD
PRINCIPAL FRANKLIN GRAMMAR SCHOOL, WILKESBARRE, PA

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NOTE

In this book a review of the fifth year's work is supplemented by more difficult problems and operations in the subjects included in the preceding book. The work in denominate numbers and practical measurements is extended; chapters on areas and volumes are included; interest, promissory notes, commission, trade discount, taxes, and insurance are introduced as applications of the principles of percentage ; and a simple and logical treatment of ratio is presented.

The chapters devoted to review, general analysis, and miscellaneous work give a great variety of drill on the principles developed.

The method of treatment is largely inductive. The pupil is led to see the reason for the various processes, and is encouraged to formulate his own methods of operation.

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161 314

391

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12. 52 163

212

238 2+1 164 352 471 371 296 375

28 13. 14. 15. 16.

17. 21.06 60.395 34.29 $38.92 $187.72 42.71 76.001 72.052

76.74 321.653 29.064 39.42

28.011 89.373 74.53% 32.025 74.005

64.213
104.72

92.373 76.402 66.06

98.3710 87.873 304.78 20.33 74.663 81.623

51.623 39.625 18. 1+1=? 23. 4+1=? 28. } + = ? 33. } + 1 =? 19. }+=? 24. 1+8=? 29. 3+ 1 = ?

34. B + } =? 20. {+1=? 25. s+{=?

25. ģ+ i=? 30. + 10 =? 35. { +14=? 21. }+=? 26. f+}=? 31. } + { =? 36. { + i:=? 22. + =? 27. +3=? 32. 1 + z = ? 37. 1 + = ?

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