Skip to main content
Concept MapCivil Service Exam (Professional) · Numerical Ability

Civil Service Exam (Professional) Numerical Ability — Integers, PEMDAS & DivisibilityConcept Map

The Integers, PEMDAS & Divisibility concept map from Super Tutor's Civil Service Exam (Professional) review: the central idea, the concepts around it and how they relate.

Super Tutor's review for Civil Service Exam (Subprofessional) uses these same chapters, so they live here in the Civil Service Exam (Professional) section.

Integers, PEMDAS & Divisibility - Concept Map

Numerical Operations and Properties

Related concepts

Integers

Sub concepts

  • Positive integers
  • Negative integers
  • Zero properties
  • Law of signs
  • Absolute value
  • Integer operations

Relationship to central

Foundation for all numerical operations

PEMDAS Order of Operations

Sub concepts

  • Parentheses first
  • Exponents second
  • Multiplication and Division left-to-right
  • Addition and Subtraction left-to-right

Relationship to central

Rules governing how to perform multiple operations correctly

Divisibility Rules

Sub concepts

  • Divisibility by 2,5,10
  • Divisibility by 3,6,9
  • Divisibility by 4,8
  • Divisibility by 7,11,12

Relationship to central

Quick methods to determine if numbers divide evenly

Factors and Multiples

Sub concepts

  • Prime factors
  • Composite numbers
  • GCF and LCM
  • Common factors
  • Common multiples

Relationship to central

Related concepts that help understand number relationships

Concept connections

  • IntegersPEMDASIntegers are the numbers used in PEMDAS operations
  • PEMDASDivisibilityPEMDAS helps evaluate expressions before applying divisibility tests
  • DivisibilityFactors and MultiplesDivisibility rules help find factors and determine multiples
  • IntegersFactors and MultiplesFactors and multiples are relationships between integers
  • Absolute ValueLaw of SignsAbsolute value is used when applying sign rules in integer operations
  • Prime FactorsDivisibility RulesPrime factorization helps understand why divisibility rules work
  • GCF and LCMDivisibilityFinding GCF and LCM often requires checking divisibility
  • Zero PropertiesPEMDASSpecial zero properties affect calculations in PEMDAS

Diagrams

Complete Chapter Concept Map - Integers, PEMDAS & Divisibility

This comprehensive mind map shows how integers form the foundation for understanding PEMDAS operations and divisibility rules, with factors and multiples connecting all concepts together.

PEMDAS Order of Operations Process Flow

Step-by-step flowchart showing exactly how to apply PEMDAS rules when solving mathematical expressions, ensuring correct order of operations.

Divisibility Testing Decision Tree

Decision tree for quickly testing divisibility using the most common rules, helping students systematically check if a number is divisible by 2, 3, 4, 5, 6, or 9.

Integer Operations with Signs Process

Flowchart showing the law of signs for integer operations, helping students understand when results are positive or negative in addition, subtraction, multiplication, and division.

Integers, PEMDAS & Divisibility is chapter 1 of 9 in the Numerical Ability part of Super Tutor's Civil Service Exam (Professional) review. The Career Service Examination — Professional Level is given by Civil Service Commission (CSC); its dates, format and passing rules are on the Civil Service Exam (Professional) page. See the Civil Service Exam (Professional) guide.

Study Integers, PEMDAS & Divisibility in the Super Tutor app

Super Tutor's Civil Service Exam (Professional) review has every chapter in 11 study formats, practice quizzes at three difficulty levels and an AI tutor, plus full Civil Service Exam (Professional) mock exams. Start free — 5-day trial, no card.

Reviewing for another exam? Start free for: