Precedence and Associativity of Operators in Python

These exercises don’t require advanced logic — just practice writing and evaluating expressions correctly based on precedence.

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1) Simple Arithmetic with Precedence

Compute and print the result of:

3 + 4 * 5

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2) Use Parentheses to Change Order

Evaluate:

(3 + 4) * 5

and print the result.

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3) Division and Multiplication

Write and print:

100 / 5 * 2

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4) Power vs. Multiply

Compute and print:

2**3 * 4

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5) Mixed Operators

Evaluate:

10 - 3*2 + 5

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6) Modulus with Add

Print the result of:

10 + 20 % 3

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7) Using Floor Division

Evaluate and print:

17 // 3 * 2

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8) Associativity with Subtraction

Compute:

10 - 5 - 2

and explain why the result is that number.

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9) Associativity with Division

Compute:

100 / 10 / 2

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10) Combination

Evaluate:

5 + 2**3 * 3

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11) Relational Precedence

Compare:

5 + 3 > 6

and print the Boolean result.

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12) Logical With Arithmetic

Evaluate:

3 > 1 and 2 < 5

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13) Logical with Arithmetic and Parentheses

Evaluate:

(3 > 1) and (2 + 1 < 5)

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14) Mixed Relational

Print the result of:

4 * 2 < 9 - 1

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15) Boolean Precedence

Evaluate and print:

True or False and False

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16) Parentheses in Boolean

Re-write #15 with parentheses to change result:

(True or False) and False

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17) Combined Arithmetic + Boolean

Evaluate:

10 % 4 == 2 and 7 > 3*2

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18) Compare Equal & Not Equal

Print:

5 == 5 != 3

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19) Ternary Operator

Use ternary expression to print:

‘Even’ if x % 2 == 0 else ‘Odd’

for x = 7.

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20) Nested Arithmetic & Bitwise

Evaluate:

2 + 3 << 2

and explain why that result occurs.

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🧠 Concepts Practiced

Grammar	Example
Precedence	* / % before + -
Power	** highest among arithmetic
Associativity	Left-to-right for + - * /, right-to-left for **
Relational	< > == !=
Logical	not > and > or
Ternary	X if C else Y

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📌 Early Evaluation Rules (Simplified)

1. Parentheses

2. Exponentiation

3. Multiply, Divide, Mod, Floor Div

4. Add, Subtract

5. Relational

6. Logical (not > and > or)

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🀄 Quick Example

print(3 + 4 * 5)    # 23  (multiplication first)
print((3+4) * 5)    # 35  (overridden by parentheses)
print(2**3 * 4)     # 32  (power before multiply)

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canvil: 333f6c7d-6876-4f7e-b6ad-1bdb2233f5c1