Help your child excel in arithmetic! Abeka’s Arithmetic 4 Child Kit reviews and builds on earlier learned mathematical concepts, including multiplication and division by two-digit numbers; estimation; square measurements; writing decimals as fractions; and simple geometry. This Teacher Key accompanies the sold-separately Arithmetic 4 Work-text, Fifth Edition and contains copies of pages in the student text with answers overlaid. 398 pages, softcover. Grade 4.