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Find the rotation that maps one figure to another
By Khan Academy
Sal introduces geometric transformations! Specifically, he explains what the image of a transformations is, what are the rigid transformations, and which transformations are not rigid.
Find the translation that maps a given figure to another
By Khan Academy
Sal introduces geometric transformations! Specifically, he explains what the image of a transformations is, what are the rigid transformations, and which transformations are not rigid.
Introduction to long division | Multiplication and division | Arithmetic | Khan Academy
By Khan Academy
Dividing into larger numbers. Introduction to long division without remainders
Order of operations 2
By Khan Academy
Work through a challenging order of operations example with only positive numbers.
Factor polynomials using quadratic methods
By Khan Academy
Sal factors -12f^2-38f+22 as -2(2f-1)(3f+11).
Factor polynomials with special product forms
By Khan Academy
Sal factors 49x^2-49y^2 as (7x+7y)(7x-7y) or as 49(x+y)(x-y).
Factor polynomials with special product forms
By Khan Academy
Sal factors 49x^2-49y^2 as (7x+7y)(7x-7y) or as 49(x+y)(x-y).
How to read a line plot that uses fractions | 4th grade | Khan Academy
By Khan Academy
Learn how to read a line plot that records average monthly rainfall for various cities.
Integer addition and subtraction: find the missing value
By Khan Academy
Sal solves some missing value problems: -1 = 7 - __ and -10 + __ = -5 and 4 = -2 + __ and 6 + __ = -8
The counting principle
By Khan Academy
Find the number of ways you can put four types of flowers into three types of pots.