videos with an are Khan Academy videos
Intro to Place Value
Place Value Blocks (vid)*
Place Value Tables(vid)*
Finding Place Value(vid)*
Creating the Largest or Smallest Number(vid)*
Estimation
Rounding Whole Numbers to the Nearest Hundred(vid)*
Rounding Whole Numbers to the Nearest Thousand(vid)*
Rounding Whole Numbers: missing digit(vid)*
Rounding Whole Numbers Word Problems(vid)*
Addition and Subtraction
Addition Using Place Value(vid)*
Adding Multi-digit Numbers(vid)*
Multi-digit Subtraction(vid)*
Subtraction Using Place Value(vid)*
Converting Units of Length
Converting Feet to Inches(vid)*
Converting Yards to Inches(vid)*
Practice: Convert to smaller units
Multi-step Unit Conversion Examples(vid)*
Finding Area
Area and Perimeter of a Rectangle (vid)*
Area and Perimeter of a Rectangle (vid)*
Factors and Multiples
Finding Factors of a Number (vid)*
Finding Factors and Multiples (vid)
Prime and Composite Numbers
Prime and Composite Numbers Intro*
Prime Numbers (vid)*