A large selection of fourth grade math worksheets sorted by topic is available on K5Learning.com. Additional collections of math worksheets can be found at MathWorksheets4Kids.com and HomeSchoolMath.net.
Some of the subjects generally included in fourth grade math curricula include advanced addition and subtraction, multiplication and division, fractions, and decimals. Fourth grade students are also introduced to common units of measurement and asked to develop an instinctive sense of these units as well as learn to calculate math problems with them. Finally, fourth grade students may begin studying basic geometry, learning to measure lines and angles and classifying basic geometric shapes.