One of the best simulated problem websites is the National Library of Virtual Manipulatives. This site has grade-appropriate activities which simulate problems in the subjects of numbers and operations, algebra, geometry, measurements, data analysis and probability. Problems with fractions, percentages, number lines, graphing, factors, triangles, circles, platonic solids, transformations, pattern blocks, bar charts, pie charts and histograms are all simulated on this site. The site has interactive games such as virtual spinners for probability data, dominoes in shapes other than rectangles and with more than two sides of dots, geoboards which simulate pegboards, tangram Chinese shape puzzles, tessellations and fractal generators and classic math strategy games such as Towers of Hanoi and Mastermind.
IXL's website has dozens of virtual worksheets full of simulated problems for seventh-grade math. Topics covered include number theory, measurement, charts and graphs, decimals, geometry, integers, fractions, transformations, Pythagorean theorem, rational numbers, exponents and square roots, ratios and expressions, single-variable equations, percentages, linear functions, probability, statistics, problem solving and estimation. The site offers virtual questions which are timed, and players' scores are calculated. If an incorrect answer is entered, an explanation is provided and students are allowed to try to answer correctly again.
Quizlet offers more than 250 flashcard, worksheet and quiz sets for seventh-grade math. Topics range from seventh-grade math vocabulary to math functions, ratios, proportions, volume, surface area, geometry and pre-algebra. These flashcards can be printed out or used online with audio components. Each flashcard set comes with an accompanying worksheet and quiz. The worksheets also have audio when used online and can be printed with solutions, and the quizzes can be taken virtually or printed as well. The quizzes can be customized, with answers in the form of true or false, multiple choice, matching or written answers.
SoftSchools offers dozens of simulated math worksheets, games and activities. Topics covered include basic math, fractions, exponents, rounding, decimals, factors, percentages, ratios, order of operations, estimation, measurement, temperature, statistics and data, geometry and algebra. Each unit has a variety of activities. The "Decimal" unit, for instance, offers five different decimal games, six decimal worksheets and a decimal quiz. AAAMath also hosts seventh-grade math lessons which include simulated problems at the end of each lesson.