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Physics
Mathematics
Addition and Subtraction
All Subcategories (109)
Add/Subtract using rounding
Adding and Subtracting Fractions
Adding and subtracting large numbers
Adding and subtracting mixed numbers
Adding and subtracting negative and positive numbers
Adding decimals and subtracting decimals
Adding mixed numbers
Adding negative numbers
Adding Three Numbers
Addition and Subtraction of Decimals
Addition and Subtraction of Negative Numbers
Addition and Subtraction with Negative Numbers
Addition of Fractions
Addition of negative numbers
Age Calculation
Application problems
Balancing an equation
Basic Addition
Basic Arithmetic
Calculating distances or heights
Calculating with Integers
Calculation examples
Calculations with negative numbers
Canceling out
Checking Addition Problems
Combining Negative and Positive Numbers
Combining positive and negative numbers
Combining quantities to make 0
Common Addition Mistakes
Commutative, Inverse, and Identity Properties
Comparing Addition and Subtraction Expressions
Comparing Distances
Comparing expressions
Comparing Numbers
Comparing quantities
Complex calculations
Counting up and back by tens
Division and Multiplication
Equations
Equations and Expressions
Estimating
Estimating Sum and Difference
Estimating sums and differences
Estimating Sums or Differences
Estimation
Explaining Addition using Counting Strategies
Expressions with specific numbers
Fact Families
Feet and Inches Conversion
Finding the Additive Inverse
Floors traveled in an elevator
Fractions
Integer Addition and Subtraction
Integer operations
Integers
Integers or Number line
Interpretation
Interpretation and Context
Interpreting the sum in the context of the problem
Measurement word problems
Mixed number addition
Mixed Numbers
Mixed numbers addition
Mixed numbers addition and subtraction
Mixed Numbers and Fractions
Mixed numbers and improper fractions
Mixed numbers calculation
Mixed operations
Money Calculation
Multi-digit addition
Multi-digit addition and subtraction
Multiplication and Division
Negative integers
Negative numbers
Number Line
Number line representation
Number Line Strategy
Number Lines
Operations with integers
Percentage Calculation
Place value
Polynomials
Positive and Negative Numbers
Radical Expressions
Real-life word problems
Real-world Applications
Real-world word problems
Removing or Withdrawing
Rounding
Simple Arithmetic
Simplification
Simplifying Expression
Solving equations
Solving word problems
Specific Number Operations
Subtracting fractions
Subtracting negative numbers
Subtracting or Withdrawing a Quantity
Subtraction
Subtraction of Whole Numbers
Sum of Positive and Negative Numbers
Using compatible numbers
Using related facts
Weight comparison
Withdrawal and Removal
Word Problem Interpretation
Word Problems
Zero-sum problems
Zero-sum Situations
Parent Categories (101)
Algebra
Algebra / Arithmetic
Algebraic Expressions
Algebraic operations
Arithmetic
Arithmetic and Expression Simplification
Arithmetic and Number Operations
Arithmetic and Operations
Arithmetic operations
Arithmetic problems
Arithmetic Sequences
Arithmetic Word Problems
Basic Arithmetic
Basic Arithmetic and Numbers
Basic Arithmetic Operations
Basic Arithmetic/Calculations
Basic Mathematics
Basic Operations
Basic Operations in Mathematics
Binary Operations
Calculations
Combining Like Terms
Comparing Numbers
Complex Numbers
Counting and Arithmetic
Counting and Money
Counting and Numbers
Decimal Numbers
Decimals
Equation Solving
Equations
Equations and Expressions
Equations and Operations
Equations/Calculations
Estimation
Estimation and Calculation
Expressions
Fractions
Fractions and Decimals
Fractions and Operations
Inequalities
Integer operations
Integers
Integers and Operations
Math
Math and Money
Math or Number Operations
Math or Numeracy
Math Problems
Math Word Problems
Mathematical Expressions
Mathematical Operations
Mathematics
Measurement
Measurement and Conversion
Measurement and Units
Mental Math
Money
Money and calculations
Money/Finance
Number Expressions
Number Line
Number line and arithmetic operations
Number line operations
Number Operations
Number Properties
Number Sense
Numbers
Numbers and Operations
Numerical Expressions
Numerical Operations
Operations
Operations and calculations
Operations and Computation
Operations and Equations
Operations and Expressions
Operations involving integers
Operations on Numbers
Operations with Fractions
Operations with integers
Operations with Money
Operations with numbers
Operations with Variables
Order of Operations
Place value
Polynomial Operations
Polynomials
Pre-algebra
Problem Solving
Properties of Operations
Rational Numbers
Scientific notation
Simplifying expressions or Combining like terms
Solving equations
Time
Time calculation
Time Conversion
Vector Operations
Vectors
Word problem
Word Problems