Bitwise

Flip a row of bit switches to build the target value — then, in cascade mode, watch the carry ripple through a binary sum.

How to play

Each round shows a target. In Convert mode you set the switches so your binary value equals a number given in binary, octal, hex or decimal. In Cascade mode you add two binary numbers and set the switches to their sum. Solve six rounds before the clock runs out.

• Each switch is a power of two; toggle them and read your value live
• Submit to check — correct answers add a speed bonus, wrong ones cost points
• After a cascade solve, the carry ripple is revealed as the payoff

Controls

• Desktop: click switches, or press number keys 1-9 to toggle columns, Enter to submit, Backspace to clear
• Phone & tablet: tap the switches and the Submit/Clear buttons

Game modes

• Convert or Cascade mode, each in Easy, Medium or Hard
• Daily for a shared seed, Practice for random rounds

Tips & strategy

• Work from the largest place value down — subtract it from the target if it fits, then move to the next bit
• For sums, add column by column and carry the 1 just like longhand binary addition

What you'll learn

Bitwise is a fast number-systems trainer covering binary, octal and hexadecimal conversion and ripple-carry addition.

• Skills: number systems (binary, octal, hex), base conversion, binary addition
• Best for: roughly grades 8–12 (ages 13+)
• For parents & teachers: fluency across number systems.

About Bitwise

Bitwise is a fast number-systems trainer covering binary, octal, hex conversion and ripple-carry addition. It is an original, free browser game built in-house for PlayPendium.

A free, original browser game on PlayPendium — no download, no install. Browse all games →