Fastest Mental Maths Method
Enter a simple calculation and see a reliable mental shortcut when one applies.
Try 98 × 97, 48 × 25, 35², 18% of 50, 247 + 99 or 640 ÷ 5.
What this does
This is a small deterministic rule engine, not AI. It recognises calculations where a reliable mental shortcut is clearer than ordinary long arithmetic. If no special shortcut applies, it simply shows the normal answer.