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2. Logic Blocks: These blocks allow you to make decisions using true/false values. You can
compare values and use logical operations like AND, OR and NOT. Example:

Blocks Functions

Represents the constant value true. It is used to set the

true Boolean properties of components or assign a condition
value to a variable.

Represents the constant value false. It is used to set the
false Boolean properties of components or assign a variable to
represent a condition.

3. Math Blocks: These blocks perform basic and advanced mathematical calculations. You
can add, subtract, multiply, divide and more. Example:

Blocks Functions

This block lets you display numbers in decimal form and
can also show them in other formats, such as binary or
decimal 0
hexadecimal.

This block compares two values to check if one is greater
=
than, less than or equal to the other.

4. Text Blocks: These blocks are used to work with words and characters. You can join,
split, change and compare text. Example:

Blocks Functions

This string can contain any characters (letters, numbers

or other special characters). On App Inventor it will be
considered a Text object.

Appends all of the inputs to make a single string. If there are
join
no inputs, it returns an empty string.

Creating Apps with MIT App Inventor 123