Binary Numbers

Practice converting numbers between decimal and binary form – a key concept in computer science and digital technology.

Instructions for Binary Numbers

Binary numbers – or the binary number system – is a base-2 positional system in which all values are expressed using only the digits 0 and 1. It is the foundation of how computers store and process information, and a central concept in digital technology and programming. In our everyday decimal system (base 10), each position represents a power of ten; in the binary system, each position represents a power of two.

This game gives students practice converting numbers between decimal and binary form in both directions. It is well suited as an introduction to number systems and digital technology, or as a revision activity alongside classroom instruction on how computers work. The varied exercise formats help reinforce understanding progressively, making it easy for teachers to use as independent practice or as a complement to whole-class teaching.

1. Decimal to Binary, 1-16 (Multiple choice)

Multiple Choice - The level consists of 16 multiple choice questions (all of which have pictures), but a maximum of 10 multiple choice questions are practiced per game round. For each question, the player is given three possible answers, only one of which is correct. It is up to the player to choose the correct option. The student has 3 hearts, giving them another chance at missed multiple choice questions during a game round. Questions have text-to-speech in English. Answers have text-to-speech in English. There is no time limit. When the student has selected all the correct answers, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

2. Decimal to Binary, 1-16 (Arrange 1s and 0s in the right order)

Put in Order - The level contains 12 questions, but a maximum of 10 questions are practiced per game round. The player's task is to drag the pieces to their correct places in the order. The student has 3 hearts, giving them another chance at missed questions during a game round. There is no time limit. When the student has ordered all the pieces correctly, the round is completed. If it is too difficult, you can click the Give up button – then the correct order is shown – and the player can try to complete the level again.

3. Decimal to Binary, 1-16 (Type the binary form of each number)

Questions with Text Answers - The level consists of 16 questions (all of which have pictures), but a maximum of 10 questions are practiced per game round. The student must enter the correct answer without any hints and has 3 hearts (extra tries) to write the correct word or sentence in each question's text field. Answers are not case-sensitive. The student has 3 hearts, giving them another chance at missed questions during a game round. The student does not receive any feedback when writing the answer, which makes the task a bit more difficult. Questions have text-to-speech in English. There is no time limit. When the student has written all the answers correctly, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

4. Binary to Decimal, 1-16 (Multiple choice)

Multiple Choice - The level consists of 16 multiple choice questions (all of which have pictures), but a maximum of 10 multiple choice questions are practiced per game round. For each question, the player is given three possible answers, only one of which is correct. It is up to the player to choose the correct option. The student has 3 hearts, giving them another chance at missed multiple choice questions during a game round. Questions have text-to-speech in English. Answers have text-to-speech in English. There is no time limit. When the student has selected all the correct answers, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

5. Binary to Decimal, 1-16 (Write the decimal value of each binary number)

Questions with Text Answers - The level consists of 16 questions (all of which have pictures), but a maximum of 10 questions are practiced per game round. The student must enter the correct answer without any hints and has 3 hearts (extra tries) to write the correct word or sentence in each question's text field. Answers are not case-sensitive. The student has 3 hearts, giving them another chance at missed questions during a game round. The student does not receive any feedback when writing the answer, which makes the task a bit more difficult. Questions have text-to-speech in English. There is no time limit. When the student has written all the answers correctly, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

6. Binary to Decimal, 1-16 (Link each binary number to its decimal value)

Link Up - The level consists of 16 questions, but a maximum of 10 questions are practiced per game round. The player's task is to link the 10 questions in the colored boxes with the most appropriate answers in the white boxes. Each colored box can only be linked to one white box and vice versa. The student receives feedback on their links Before submission. The student has 3 hearts, giving them another chance at missed links during a game round. There is no time limit. When the student has linked all the boxes correctly, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct links are displayed - and try to complete the level again.

7. Binary to Decimal, 1-16 (Memory)

Memory - The level consists of 16 pairs (each consisting of words paired with other words), but a maximum of 10 pairs are practiced per game round. The student's task is to find two cards that match. If two matching cards are found, they are removed from the board. The game is finished when all 10 pairs of cards have been found and no cards are left on the board. There is no limit to the number of allowed misses, so the only thing that counts is finding all card pairs. There is no time limit. If it is too difficult, the player can click the button labeled Cancel - then it will show which pairs of cards match - and try to complete the level again.

8. Decimal to Binary – Larger Numbers (Multiple choice)

Multiple Choice - The level consists of 10 multiple choice questions (all of which have pictures) and all of them are practiced in every game round. For each question, the player is given three possible answers, only one of which is correct. It is up to the player to choose the correct option. The student has 3 hearts, giving them another chance at missed multiple choice questions during a game round. Questions have text-to-speech in English. Answers have text-to-speech in English. There is no time limit. When the student has selected all the correct answers, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

9. Decimal to Binary – Larger Numbers (Type binary representations)

Questions with Text Answers - The level consists of 10 questions (all of which have pictures) and all of them are practiced in every game round. The student must enter the correct answer without any hints and has 3 hearts (extra tries) to write the correct word or sentence in each question's text field. Answers are not case-sensitive. The student has 3 hearts, giving them another chance at missed questions during a game round. The student does not receive any feedback when writing the answer, which makes the task a bit more difficult. Questions have text-to-speech in English. There is no time limit. When the student has written all the answers correctly, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

10. Binary to Decimal – Larger Numbers (Multiple choice)

Multiple Choice - The level consists of 10 multiple choice questions (all of which have pictures) and all of them are practiced in every game round. For each question, the player is given three possible answers, only one of which is correct. It is up to the player to choose the correct option. The student has 3 hearts, giving them another chance at missed multiple choice questions during a game round. Questions have text-to-speech in English. Answers have text-to-speech in English. There is no time limit. When the student has selected all the correct answers, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

11. Binary to Decimal – Larger Numbers (Write decimal values)

Questions with Text Answers - The level consists of 10 questions (all of which have pictures) and all of them are practiced in every game round. The student must enter the correct answer without any hints and has 3 hearts (extra tries) to write the correct word or sentence in each question's text field. Answers are not case-sensitive. The student has 3 hearts, giving them another chance at missed questions during a game round. The student does not receive any feedback when writing the answer, which makes the task a bit more difficult. Questions have text-to-speech in English. There is no time limit. When the student has written all the answers correctly, the game round is completed. If it is too difficult, the player can click the button labeled Cancel - then the correct answers will be displayed - and try to complete the level again.

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