First, I solve two subtraction problems (8 - 2 - 2 and 8 - 3 - 4) with the help of visuals. Then I explain two different ways to subtract two numbers: subtract them one at a time -- or add the numbers to be subtracted, and subtract the sum.
The next part of this lesson is at • Subtracting several numbers - practice (1s... -- we practice subtracting several numbers and also work on some CHALLENGES. Check it out!
Find more videos for 1st grade math:
https://www.mathmammoth.com/videos/gr...
Math Mammoth Grade 1 curriculum:
https://www.mathmammoth.com/complete/...