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Operators Blocks
The Operators blocks let you work with various operators. These blocks are colour-code green. These
are reporter blocks that fit into similar-shaped slots of other blocks. There are several types of operators
blocks in the Operators blocks palette. Let us learn about some of them.

Mathematical Operator Blocks
Mathematical operators are used to perform mathematical calculations on numeric values. The
mathematical operator blocks in Scratch 3 are:

Block Description
Adds the two specified values.

Subtracts the second value from the first value.
Multiplies the specified values.

Divides the first number by the second number and displays the quotient.

Divides the first number by the second number and displays the remainder.
Relational Operator Blocks
Relational operators are used to compare two values or expressions. The result of these operators is
either True or False.
The relational operator blocks in Scratch 3 are:

Block Description

Returns ‘True’ if the first value is equal to the second value, else returns ‘False’.
Returns ‘True’ if the first value is greater than the second value, else returns ‘False’.

Returns ‘True’ if the first value is less than the second value, else returns ‘False’.

Logical Operator Blocks
Logical operators are used to combine two or more expressions containing relational operators. These
operators evaluate to either True or False. The logical operator blocks in Scratch 3 are:

Block Description

Returns ‘True’ if both the expressions are True, else returns ‘False’.
Returns ‘True’ if any one of the expressions is True, else returns ‘False’.
Returns ‘True’ if the expression is False and returns ‘False’ if the expression is True.
(Reverses the result of the expression)

The table given below illustrates the use of the logical operators taking the values X = 25, Y = 40, and
Z = 30 as example.

Expression Evaluation Result
X < Y AND Y > Z True AND True True
X > Y AND Y > Z False AND True False

X > Y OR Y > Z False OR True True
X > Y OR Y < Z False OR False False
NOT X > 30 NOT False True

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