Free 1st grade math video lessons

This is a collection of free math videos for 1st grade, showing varied exercises for each topic. You can view them here on my site or at my YouTube channel (www.youtube.com/user/mathmammoth). The videos match Math Mammoth Grade 1 curriculum but will also work no matter which curriculum you follow (in other words, the videos don't rely on you having Math Mammoth curriculum).

These videos are usable for students, teachers, and parents. You can use them...

  • To learn these topics yourself (if you're a student for example, or an adult needing a refresher)
  • As lesson plans for teaching these topics. Often, one video from below can be made into several lessons with students.

Please choose a topic from the list.

Chapter 1: Addition of single-digit numbers

Learn the symbols + and =

Addition with missing numbers (missing addend)

Addition of three numbers

Addition on a number line

Addition facts within 10 — six videos matching the lessons titled "Sums with 5", "Sums with 6", "Sums with 7", "Sums with 8", "Sums with 9", and "Sums with 10".

Comparisons – compare numbers and sums

Chapter 2: Subtraction and related concepts

Subtraction and Addition in the Same Picture – the connection between subtraction and addition

Two subtractions from one addition

Fact families

The concept of "how many more"

"How many more" problems and differences

Chapter 3: Place value

Naming and writing 2-digit numbers

The "teen" numbers

Add and subtract whole tens (e.g. 20 + 70 or 80 − 40)

Bar graphs

Chapter 4: Addition & subtraction facts

Addition and subtraction facts with 6 (fact families)

Addition and subtraction facts with 7 (fact families)

Addition and subtraction facts with 8 (fact families)

Addition and subtraction facts with 9 (fact families)

Subtract many numbers

Chapter 5: Time

Whole and half hours (telling time using only the hour hand)

Minutes and half hours (the minute hand is introduced)

AM and PM (morning and afternoon) hours

Chapter 6: Shapes and Measuring

Basic shapes

Halves, quarters — and thirds too!

Measuring in whole inches

Measuring in whole centimeters

Chapter 7: Addition and subtraction of two-digit numbers

Adding without carrying – add a 2-digit number and a single-digit number mentally - no regrouping

Add and subtract two-digit numbers – without regrouping

"Make ten" (and go over ten) strategy for addition

A mental math trick with nine and eight


Chapter 8: Coins

Dimes, nickels, and pennies


Practicing with money