Official deck

Interactive Math Practice

By @memoo

Mathematics 100 cards0 imports Updated Sep 4, 2026

One hundred dynamic Math.js-powered practice cards covering arithmetic, percentages, algebra, powers, geometry, probability, statistics, vectors, matrices, and number theory. Values regenerate each time while each card keeps one focused learning objective.

Open in Memoo Download for iOS

Preview cards

Question

Add {a=randomInt(12, 80)} + {b=randomInt(12, 80)}.

Answer

{a + b}

Question

Subtract {b=randomInt(5, 30)} from {a=randomInt(40, 100)}.

Answer

{a - b}

Question

Multiply {a=randomInt(3, 16)} × {b=randomInt(3, 16)}.

Answer

{a * b}

Question

Divide {n=(d=randomInt(2, 13)) * (q=randomInt(2, 13))} by {d}.

Answer

{n / d}

Question

Evaluate {a=randomInt(2, 10)} + {b=randomInt(2, 10)} × {c=randomInt(2, 10)} using order of operations.

Answer

{a + b * c}