Mathematical Operations
View Questions of Mathematical Operations
Reasoning - Mathematical Operations
What is Mathematical Operations?
These questions involve replacing standard mathematical symbols with alternative symbols and evaluating expressions accordingly.
Types of Questions
1. Operator Replacement: E.g., + means −, × means ÷. 2. Missing Operator: Find the correct operator to balance an equation. 3. Symbolic Equations: Mix of numbers and symbols requiring simplification.
Example Questions
- If × means +, ÷ means −, + means ×, and − means ÷, what is 4 + 3 × 2?
Answer: Follow symbol replacement and solve. - Which sign should replace * in 8 * 4 = 2?
Answer: ÷ - Solve: 5 + 3 × 2 = ?
Answer: 11 (If standard operations apply; else use given replacements.)
Exam Tips
- Rewrite the expression with replaced symbols before solving.
- Follow BODMAS/BIDMAS rule unless specified otherwise.
- Be systematic in evaluating multiple replacements.
- Use brackets if needed to avoid confusion.
Common Mistakes
- Forgetting to replace symbols before solving.
- Applying standard rules to already replaced operations.
- Mixing order of operations.
Quick Revision Checklist
- Practice operator substitution problems daily.
- Reinforce understanding of operator precedence.
- Use double-line method: one for replacement, one for solving.
- Time yourself to improve accuracy under exam pressure.
Summary: Mathematical Operation questions demand precision in symbol recognition and logical computation. A clear approach ensures consistent performance in exams.
Topics
- Analogy
- Number Series
- Classification
- Series Completion
- Coding-Decoding
- Input Output
- Inequality
- Blood Relation
- Puzzle Test
- Sequential Output Tracing
- Direction Sense Test
- Linear Seating Arrangement
- Circular Seating Arrangement
- Logical Venn Diagrams
- Alphabet Test
- Number, Ranking and Time Sequence Test
- Mathematical Operations
- Logical Sequence of Words
- Arithmetical Reasoning
- Inserting The Missing Character
- Data Sufficiency
- Decision Making
- Assertion and Reason
- Situation Reaction Test
- Letter and Symbol Series
- Verification of Truth of the Statement
- Logic
- Statement - Arguments
- Statement - Assumptions
- Statement - Courses of Action
- Syllogisms
- Statement - Conclusions
- Deriving Conclusions From Passages
- Theme Detection
- Question - Statements
- Miscellaneous Logical Puzzles
- Mirror and Water Images
- Paper Folding and Cutting
- Completion of Incomplete Pattern