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Binary numbers
How binary digits work
How binary digits work programming exercises
Python
Scratch
Number
Name
Challenge Level
1.1
Display binary numbers (without calculations)
Beginner
1.2
Display Binary Numbers (using a variable)
Beginner
1.3
Display Binary Numbers (using variables as an operator)
Beginner
1.4
Display Binary Numbers (using a variable, operator and a repeat loop)
Beginner
2.1
Display number of dots for a given number of cards
Growing experience
2.2
Display number of dots from right to left in one line
Growing experience
3.1
Display number of dots from the given largest card to 1
Growing experience
4.1
Count dots on 5 black and white cards (without a loop)
Growing experience
4.2
Count dots on 5 black and white cards (using a loop)
Growing experience
4.3
Count dots on 5 black and white cards as one input (without a loop)
Growing experience
4.4
Count dots on 5 black and white cards as one input (using a loop)
Growing experience
4.5
Count dots on any number of black and white cards as one input (using a loop)
Ready to expand
5.1
Display the binary cards needed to represent a given number of dots
Growing experience
5.2
Display the binary cards needed to represent a given number of dots (all in one line)
Growing experience
6.1
Display the number of bits needed to represent a number
Ready to expand
7.1
Display the binary cards needed to represent a decimal number between 0 and 31
Ready to expand
7.2
Display the binary cards needed to represent any decimal number
Ready to expand
7.3
Convert a positive decimal number to a binary number
Ready to expand
7.4
Convert a decimal number to a binary number (alternative method)
Ready to expand
8.1
Binary representation of a decimal number between 0 and 31 by playing musical notes
Ready to expand
8.2
Binary representation of any decimal number by playing musical notes
Ready to expand
Scratch challenges have not been updated to our new plugging it in system. However, you can still access the old content using the links below.
Number
Name
Challenge Level
1.1
Display binary numbers (without calculations)
Beginner
1.2
Display Binary Numbers (using a variable)
Beginner
1.3
Display Binary Numbers (using variables as an operator)
Beginner
1.4
Display Binary Numbers (using a variable, operator and a repeat loop)
Beginner
2.1
Display number of dots for a given number of cards
Growing experience
2.2
Display number of dots from right to left in one line
Growing experience
3.1
Display number of dots from the given largest card to 1
Growing experience
4.1
Count dots on 5 black and white cards (without a loop)
Growing experience
4.2
Count dots on 5 black and white cards (using a loop)
Growing experience
4.3
Count dots on 5 black and white cards as one input (without a loop)
Growing experience
4.4
Count dots on 5 black and white cards as one input (using a loop)
Growing experience
4.5
Count dots on any number of black and white cards as one input (using a loop)
Ready to expand
5.1
Display the binary cards needed to represent a given number of dots
Growing experience
5.2
Display the binary cards needed to represent a given number of dots (all in one line)
Growing experience
6.1
Display the number of bits needed to represent a number
Ready to expand
7.1
Display the binary cards needed to represent a decimal number between 0 and 31
Ready to expand
7.2
Display the binary cards needed to represent any decimal number
Ready to expand
7.3
Convert a positive decimal number to a binary number
Ready to expand
7.4
Convert a decimal number to a binary number (alternative method)
Ready to expand
8.1
Binary representation of a decimal number between 0 and 31 by playing musical notes
Ready to expand
8.2
Binary representation of any decimal number by playing musical notes
Ready to expand
9.1
Display binary cards with dots representing a number between 0 and 31
Ready to expand
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