# Angle Measurement And Circle Arcs | Angles And Intersecting Lines | Geometry | Khan Academy

Did you know that the measurement of an angle is…

# Mixed Numbers And Improper Fractions | Fractions | Pre-Algebra | Khan Academy

Converting mixed numbers to improper fractions and improper fractions to…

# Rounding To The Nearest 10 | 3th Grade | Khan Academy

Use a number line to round two-digit numbers to the…

# Perimeter And Area: The Basics | Perimeter, Area, And Volume | Geometry | Khan Academy

Great geometry primer on perimeter and area. Listen carefully. Sal…

# Complementary And Supplementary Angles | Angles And Intersecting Lines | Geometry | Khan Academy

Let’s add some tools to our geometry tool belt. Here’s…

# Adding Fractions With Like Denominators | Fractions | Pre-Algebra | Khan Academy

With like denominators, you’re basically just adding numerators. That’s not…

# Dividing Numbers: Intro To Remainders | Multiplication And Division | Arithmetic | Khan Academy

Do you like leftovers? (personally, we think they are delicious!).…

# Circles: Radius, Diameter, Circumference And Pi | Geometry | Khan Academy

A circle is at the foundation of geometry and how…

# Introduction To Place Value | Place Value (tens And Hundreds) | Early Math | Khan Academy

Learn why we use a “ones place” and a “tens…

# Finding Factors Of A Number | Factors And Multiples | Pre-Algebra | Khan Academy

To find the factors of a number means to find…