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Class 8 · Computing

Build a binary number

Interactive explanation Gamified quiz, feedback & rewards

0 XP0 mastered
Suggested-level exploration · Learning goals & preparation

By the end, you can…

  • Explain Value = sum of the active bit weights
  • Change one input at a time and predict its effect before checking the model.
  • Apply the relationship in a quiz and explain the reasoning behind your answer.

Useful preparation: Whole numbers, basic arithmetic and following ordered instructions.

This topic has a suggested learning level. A matching chapter in the current NCERT edition has not been verified, so it is not labelled as syllabus coverage.

Hands-on explainer · Class 8

Build a binary number

Class 8
Decimal 6016081412014 + 2 = 6Click a bit switch · weights double towards the left
The relationshipValue = sum of the active bit weights
01 · How to explore

Make the idea your own

  1. 1Turn individual bits on and off by clicking them.
  2. 2Read the weights from right to left.
  3. 3Add only the weights with a 1 above them.
02 · Take it further

Explain the experiment

When the goal is met: 13 = 8 + 4 + 1, so the five-bit representation is 01101.