Mini-games for memory, focus, logic and math, plus Learn Math lessons with certificates. <b>Mental Calculation</b>: Follow expressions; each result is the base for the next. <b>Chain Calculation</b>: Solve a formula step by step. <b>Sherlock Calculation</b>: Reach the goal with the given numbers and operators. <b>Fraction Calculation</b>: Solve the fractions. <b>Value Comparison</b>: Pick the expression with the highest value. <b>Bubble Sum</b>: Add the numbers on the floating bubbles. <b>Quick Sum</b>: Numbers flash one at a time; enter the total. <b>Anomaly Puzzle</b>: Find the figure that stands out. <b>Pattern Sequence</b>: Work out the rule along each row and complete the grid. <b>Path Finder</b>: Follow the arrows from the marked start. <b>Visual Memory</b>: Memorize the shapes, then identify the hidden one. <b>Ghost Grid</b>: Watch tiles light up; tap them back in order. <b>Color Confusion</b>: Tap the ink color, not the color the word names. <b>Colored Shapes</b>: Add the points from the correct statements. <b>Orbit Tracker</b>: Track the highlighted balls as they move. <b>Flash Crowd</b>: Tap the side that flashed more dots. <b>Mini Sudoku</b>: Each row, column and block once per digit. <b>Mini Chess</b>: Finish the scenario as white against the CPU. <b>Solo Chess</b>: Capture until only the king remains. Every move must capture. <b>Mini Checkers</b>: Find the winning combination as black on a 6x6 board. <b>Lights Out</b>: Turn off every light; taps toggle neighbours. <b>Sliding Puzzle</b>: Slide tiles into order. <b>Shikaku</b>: Divide the grid into rectangles matching their numbers. <b>Nurikabe</b>: Paint the sea around numbered islands, no 2x2 blocks. <b>Cat Queens</b>: One cat per row, column and color zone; none may touch. <b>Knot</b>: Connect colored pairs without crossing; cover every cell. <b>Tower of Hanoi</b>: Move the stack to the right peg. <b>Schulte Table</b>: Tap the numbers in order as fast as you can. <b>Flags</