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Addition and Subtraction Property of Equality

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Mathematics

This geometry video tutorial provides a basic introduction into the addition and subtraction property of equality as it relates to line segments and angles. It contains examples with algebra equations where you have to solve for x and find the length of a missing segment. It contains plenty of examples and practice problems.

Geometry Introduction:

Addition & Subtraction Equality Property:

Multiplication & Division Property Equality:

Transitive Property of Congruence:

Triangles – Basic Introduction:

Alternate Interior & Exterior Angles:

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2 Column Proofs of Congruent Segments:

2 Column Proofs of Angles:

Triangle Congruence – SSS, SAS, ASA:

CPCTC – 2 Column Proofs With Triangles:

Median of a Triangle Formula:

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