25 Videos for "shortcuts"

Similarity Shortcuts  Problem 1
Math › Geometry › Similarity
How to find a missing side of a triangle using the AA similarity shortcut. 
Similarity Shortcuts  Concept
Math › Geometry › Similarity
How to determine if two triangles are similar using a shortcut. 
Why SSA and AAA Don't Work as Congruence Shortcuts  Concept
Math › Geometry › Triangles
How to determine which congruence shortcuts do not work and why. 
Similarity Shortcuts  Problem 2
Math › Geometry › Similarity
How to find a missing side of a triangle using the SAS similarity shortcut. 
Similarity Shortcuts  Problem 3
Math › Geometry › Similarity
How to determine if two triangles are similar using a shortcut. 
Difference of Perfect Squares  Problem 7
Math › Algebra › Factoring
Identifying binomials that are a difference of perfect squares and using shortcuts to factor them. 
Divisibility  Concept
Math › PreAlgebra › Prime Numbers
Shortcuts to determine whether a number is a factor of another 
Proportions  Problem 5
Math › Algebra › Solving Equations
Shortcuts for using "mental math" to solve proportional relationships 
HL  Concept
Math › Geometry › Triangles
How to use the hypotenuse leg shortcut to determine the congruence of right triangles. 
Multiplying Polynomials  Problem 3
Math › Algebra 2 › Polynomials
Using difference of perfect squares as a shortcut in multiplying a series of binomials. 
HL  Problem 3
Math › Geometry › Triangles
How to solve for a variable to make two right triangles congruent using the HL shortcut. 
ASA and AAS  Concept
Math › Geometry › Triangles
How to use the ASA and AAS shortcuts to determine the congruence of two triangles. 
SSS and SAS  Concept
Math › Geometry › Triangles
How to use the SAS and SSS shortcuts to determine the congruence of two triangles. 
Multiplying Complicated Polynomials  Concept
Math › Algebra 2 › Polynomials
How to multiply ?ugly? polynomials by looking for patterns. 
Series and Summation Notation  Problem 4
Math › Precalculus › Sequences and Series
Shortcut formulas for evaluating quadratic sums in Sigma notation. 
HL  Problem 1
Math › Geometry › Triangles
How to use the hypotenuseleg (HL) shortcut to determine the congruence of vertical triangles and how to correctly denote the congruence. 
Series and Summation Notation  Problem 5
Math › Precalculus › Sequences and Series
Shortcut formulas for evaluating linear sums in Sigma notation. 
Series and Summation Notation  Problem 5
Math › Algebra 2 › Sequences and Series
Shortcut formulas for evaluating linear sums in Sigma notation. 
Multiplying Complicated Polynomials  Problem 1
Math › Algebra 2 › Polynomials
How to multiply more complicated polynomials by looking for patterns. 
Series and Summation Notation  Problem 6
Math › Precalculus › Sequences and Series
Shortcut formulas for evaluating sums in Sigma notation that are neither arithmetic nor geometric.