A great math book with problems based on agricultural situations. Designed for eighth grade plus. First written in 1939 by Theodore H Fenske it presents arithmetic in a practical way and has been reprinted several times. Chapters include: Whole numbers, Decimals, Fractions, and Percentage. Other chapters focus on Weights and their use, Farm economics, Crops, soils and fertilizers, Livestock and Farm building and Engineering. The teachers answer key not only gives the correct answers it shows the actual methods of calculation. Hard cover, 5 1/2 x 8 1/2, 260 pages. Answer key is a separate soft-cover booklet which is included.