# 3rd Grade Online Math Videos

According to the Common Core Standards, in Grade 3, instructional time should focus on four critical areas: (1) developing understanding of multiplication and division and strategies for multiplication and division within 100; (2) developing understanding of fractions, especially unit fractions (fractions with numerator 1); (3) developing understanding of the structure of rectangular arrays and of area; and (4) describing and analyzing two-dimensional shapes.

If you know a particular Common Core Domain that you'd like to practice, you can drill down to it here.

### All 3rd Grade Online Math Videos

This is a listing of all our 3rd Grade Online Math Videos. Newest videos are on top!

Screenshot Name / Description Flag? Rating
What are fractions?
Instructional video introducing fractions (4:28)
Khan - Associative Law of Multiplication
Work through a practice problem on the associate law (2:15)
Khan - Commutative Law of Multiplication
Work through a problem with Sal on the commutative law of multiplication (1:48)
Khan - Dividing Whole Numbers and Applications 1
Work through a problem on division and documenting the question in different ways (2:28)
Khan - Lattice Multiplication
Complete a multidigit multiplication question using the lattice method (7:15)
Khan - Rounding Whole Numbers 2
Work through a problem with Sal on rounding to the thousands place (2:28)
Khan - Multiplication 1
Introduction to multiplication via grouping objects (13:20)
Khan - Division 1
Introduction to division with Sal (17:02)
Khan - Division 2
Second part of an introduction to division (11:39)
Khan - Division 3
Part three in this three part series on division - includes remainders (10:07)
Khan - Area of a triangle
Rearranging variables in a formula to isolate specific variables
Khan - Application problems with equation in one variable
Use variables to construct a problem statement and solve for the variable (2:01)
Khan - Round and Multiply Whole Numbers
Work through a practice problem involving rounding and multidigit multiplication (1:50)
Khan - Rounding 1
Lean about rounding numbers with Sal (4:22)
Khan - Regrouping (Borrowing) Twice Example
Subtract hundreds from thousands in this practice problem (8:47)
Khan - Partitioning Shapes
Partition a pentagon to understand fraction parts (2:47)
Khan - Multiplying Monomials
Work through a problem on monomials to polynomials (1:05)
Khan - Numerator and Denominator of a Fraction
Work through a fraction problem with Sal using geometry (2:31)
Khan - Proper and Improper Fractions
Work through a problem on proper fractions (1:41)
Khan - Performing arithmetic calculations on units of volume
Work through a conversion problem with Sal (5.23)
Khan - Solving problems involving units of volume
Solve a word problem with volume conversions (3:29)
Khan - US Customary Units and Metric Units
Sort a list of measurements as either US or Metric units (5:10)