Math at hand Author:Great Source Education Group The only math resource you'll need for school or home. math at hand has everything you need for math success. numeration,number theory,mental math and estimation,computing with whole numbers and decimals,computing with fractions,ratio,proportion and percent,pre-algebra,graphing,statistics and probability,measurement,geometry,problem solving. Als... more »o includes a handy almanac with study tips:test taking stratagies« less