Grades 3–6 · Ages 8–12
Target Sum
Choose number tiles that add exactly to the target before the round ends.
Original browser games
Short challenges with tested controls, honest skill labels, and an explanation of what each game can—and cannot—practice.
Grades 3–6 · Ages 8–12
Choose number tiles that add exactly to the target before the round ends.
Grades 4–8 · Ages 9–14
Find the missing value in a row or column pattern using the fewest hints.
Grades 4–7 · Ages 9–13
Pair a fraction with its visual model and equivalent decimal.
Grades 3–6 · Ages 8–12
Solve a focused set of multiplication facts while accuracy matters more than speed.
Grades 3–7 · Ages 8–13
Complete an equation by keeping both sides of a visual balance equal.
Grades 4–8 · Ages 9–14
Switch every light on while each move changes a predictable group of neighbors.
Grades 4–8 · Ages 9–14
Compare candidate rules and identify the one that fits every number in a sequence.
Grades 4–7 · Ages 9–13
Choose the greater decimal and use place value—not digit length—to decide.
Grades 4–7 · Ages 9–13
Build every whole-number factor pair for a target without repeating a pair.
Grades 4–7 · Ages 9–13
Write a quotient and remainder, then verify that they rebuild the dividend.
Grades 5–8 · Ages 10–14
Arrange four number and operation tiles into a true equation for the target.
Grades 4–8 · Ages 9–14
Find the value that breaks a stated mathematical rule and explain the evidence.
Grades 3–7 · Ages 8–13
Plan a path across a grid while obeying direction and obstacle constraints.
Grades 5–8 · Ages 10–14
Sort numbers as prime or composite and inspect a factor when a number is composite.
Grades 3–6 · Ages 8–12
Place a fraction at the matching position between zero and one.