Back to Algebra repository
Algebra2D

Fundamentals - Theory & Concepts

Review of basic algebraic concepts including order of operations, real number properties, absolute value, and inequalities.

Open the complete lesson

Properties of Real Numbers on the Number Line

Commutative Property

a+b=b+aa + b = b + a
3+(−2)=−2+(3)3 + (-2) = -2 + (3)
1=11 = 1
-20-15-10-505101520a = 3b = -2b = -2a = 3a + b = 1
Visualize a+ba + b and b+ab + a reaching the same sum.

Related simulations

Fundamentals - Theory & Concepts - Absolute ValueExponents and Radicals - Theory & Concepts - Exponent RulesExponents and Radicals - Theory & Concepts - Power FunctionExponents and Radicals - Theory & Concepts - Radical Equations