Grade 1 Math 2.9, Subtract 10 or less (subtract across or down)

How we can write subtraction problems going across as a number sentence compared to going down with the numbers stacked. Why some numbers are easier to subtract. Grade 1 Math Playlist https://www.youtube.com/playlist?list=PLKi4WTp6PRGUjEYzjxD8_-5VmarRzkYNy SUPPORT MY WORK: PATREON https://www.patreon.com/JoannsSchool PAYPAL https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=KKAMABTBVDFNY MINDS minds.com/joannsschool YOUTUBE FAN FUNDING on my channel Home page https://www.youtube.com/channel/UCAZKtYcE5Jgd6hVL-RHv6Vw If you can't afford to become a monthly patron... click or watch the ads to help me out. FOLLOW ME: TWITTER https://twitter.com/JoannsSchool FACEBOOK Message me! https://www.facebook.com/JoAnnsSchool/