White H House of Math logo on multicolored square
Log inSign up

Learning Tools

Curriculum

Curriculum

Games

Multiplication Master

Multiplication Master

Junior Math

Junior Math

Invite a Friend

Curriculum

Log in

Addition and Subtraction

Numbers and Quantities iconNumbers and Quantities
Numbers
Arithmetic
Addition and Subtraction
Multiplication
Division
Powers and Roots
Calculation Order
Signs
Mental Arithmetic
Fractions and Percentages
Quantities
Economy
Vectors
Algebra iconAlgebra
Geometry iconGeometry
Statistics and Probability iconStatistics and Probability
Functions iconFunctions
Proofs iconProofs

  • Addition with Help from the Number Line

    numbersAndQuantitiesIcon
    Article on Addition with Help from the Number Line
    Read here

  • Subtraction with Help from the Number Line

    numbersAndQuantitiesIcon
    Article on Subtraction with Help from the Number Line
    Read here

  • Addition and Subtraction (The Place-value System)

    numbersAndQuantitiesIcon
    Article on Addition and Subtraction (The Place-value System)
    Read here

  • How to Subtract Using the Column Method

    numbersAndQuantitiesIcon
    Article on How to Subtract Using the Column Method
    Read here
    Go back