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Physics
Mathematics
Subtraction
All Subcategories (33)
2-digit subtraction
Algebraic Subtraction
Check work
Decimal Subtraction
Decimals
Difference
Difference between two numbers
Digit substitution in a subtraction problem
Estimation
Finding the difference
Fraction subtraction
Misreading numbers
Mixed numbers subtraction
Modeling
Modeling and Equivalent Equations
Modeling subtraction using different methods
Number Line
Number line representation
Number Lines
Place value
Place Value Understanding
Reasonableness of answer
Reasoning
Regrouping
Simplification
Simplifying expressions with variables
Subtraction with renaming
Subtraction with renaming/Regrouping
Terminology and Definitions
Three-digit numbers
Two color counter model
Word problem
Parent Categories (52)
Absolute value
Addition and Subtraction
Algebra
Algebraic operations
Arithmetic
Arithmetic operations
Arithmetics
Basic Arithmetic
Basic Operations
Calculation
Calculations
Comparing Numbers
Comparison
Comparisons
Equations
Equations and Expressions
Equations/Operations
Fraction arithmetic
Fraction operations
Fractions
Integers
Length
Math
Mathematical Operations
Mathematics
Measurement
Measurement and Units
Mental Math
Money
Money and calculations
Negative numbers
Number Line
Number line operations
Number Operations
Number Sense
Numbers and Operations
Numerical Operations
Operations
Operations (arithmetic)
Operations on Numbers
Operations with Complex Numbers
Operations with Fractions
Operations with numbers
Operations with real numbers
Polynomial Operations
Polynomials
Rational Numbers
Scientific notation
Simplification
Time
Word problem
Word Problems