Calculate in binary, hex, and decimal simultaneously
Convert numbers between binary, hexadecimal, and decimal bases. Display all three bases simultaneously. Switch input modes and see results in all bases. Perform arithmetic, logic, and bitwise operations. Support unsigned and 2’s complement numbers.
by Nidal Fakhouri★ 4.8183 ratingsUtilitiesFreeData updated 2026-09-08
Learn basic arithmetic and place value concepts using an interactive simulation. Manipulate beads to perform addition and subtraction. Adjust bead positions for different calculations. View step-by-step guidance for counting and operations.
Learn multiplication, division, powers of ten, and negative numbers with adjustable difficulty levels. Track progress through exercises and export results as PDF for sharing.