How to Use BODMAS on a Calculator
To use BODMAS on a calculator, enter the full expression with brackets and operators, then press equals. The calculator applies BODMAS automatically. Learn the 4-step process.
How to Use BODMAS on a Calculator
To use BODMAS on a calculator, enter the complete mathematical expression exactly as written, including all brackets and operators, then press the equals (=) button. Scientific calculators and the BODMAS calculator on our homepage apply BODMAS rules automatically. Standard phone calculators may not follow BODMAS — they calculate from left to right without priority rules.
4-Step Process for Using BODMAS on a Calculator
1
Write the Full Expression
Write out the complete expression before entering it
2
Enter Brackets First
Use ( ) keys to group operations that must be solved first
3
Enter the Complete Expression
Type the entire expression with all operators: ×, ÷, +, −, ^
4
Press Equals
The calculator processes BODMAS and returns the correct answer
Example: Entering a BODMAS Expression
To solve 2 + 3 × (8 − 4) on a BODMAS calculator:
Expression: 2 + 3 × (8 − 4)
Type:
2 + 3 × ( 8 − 4 ) then press =Calculator processes Brackets: (8 − 4) = 4
Calculator processes Multiplication: 3 × 4 = 12
Calculator processes Addition: 2 + 12 = 14
2 + 3 × (8 − 4) = 14
3 Types of Calculators and BODMAS
| Calculator Type | Follows BODMAS? | Notes |
|---|---|---|
| Scientific Calculator | Yes | Processes full expressions with BODMAS priority |
| Online BODMAS Calculator | Yes | Shows step-by-step BODMAS breakdown |
| Basic Phone Calculator | No | Calculates left to right — enter operations in BODMAS order manually |
5 Common Mistakes When Using a Calculator for BODMAS
- Forgetting brackets: Enter all brackets from the original expression. Missing brackets changes the operation order and produces a wrong answer.
- Using a basic calculator: Basic calculators solve left to right. Use a scientific calculator or an online BODMAS calculator for correct results.
- Pressing equals too early: Enter the full expression before pressing equals. Partial entry breaks BODMAS priority.
- Mixing up × and ÷ order: Enter multiplication and division in the order they appear from left to right. Do not rearrange operations.
- Ignoring negative signs: Use brackets around negative numbers, such as (−3), to prevent sign errors on calculators.
💡 Tip
Use a BODMAS calculator to see every step of the calculation process. Just enter any math expression and get an instant, full step-by-step breakdown.