Find here free online math videos topics related to place value and large numbers, meant for 1st, 2nd, 3rd, 4th, 5th, and 6th grades.
The videos listed here are additionally correlated to the Blue Series books Place Value 1, Place Value 2, Place Value 3, Place Value 4, and Place Value 5.
These videos match the topics in Math Mammoth Place Value 1 worktext (Blue Series).
Naming and writing 2-digit numbers
Add and subtract whole tens (e.g. 20 + 70 or 80 − 40)
These videos match the topics in Math Mammoth Place Value 2 worktext (Blue Series).
Three-digit numbers, place value, expanded form, 3-digit numbers on a number line (2 videos)
Add and subtract multiples of 100 (mental math)
Mental math: Add and subtract multiples of ten
These videos match the topics in Math Mammoth Place Value 3 worktext (Blue Series).
4-digit place value (thousands) and expanded form
Addition and subtraction with 4-digit numbers - mental math
Rounding 3 and 4-digit numbers to the nearest hundred
A lesson on estimation - add/subtract 4-digit numbers
These videos match the topics in Math Mammoth Place Value 4 worktext (Blue Series).
Adding and subtracting large numbers
Rounding and estimating with large numbers - up to six digits
Multiples of 10, 100, and 1000
These videos match the topics in Math Mammoth Place Value 5 worktext (Blue Series).
Adding and subtracting large numbers
Example: finding powers of 7 with a calculator
Examples of calculator usage: word problems
These are for 6th grade.