-- Blogmeister
 by
 Teacher Assignments Teacher Entries The End!! 5/20 Flashcards 5/13 I-Towne 5/11 World History Research 5/6 Spring Surprise 5/6 Chicken Wing 5/6 Red 5/6 My Ernest Green Story 3/15 I Have A Dream 3/15 Cell-Stuff 3/15 Show All The Little Gray Furball 2/16 Recent Books 2/16 When I'm Board 2/5 2011 Reveiw 1/12 Wiki Reflection 12/15 Greece 12/15 What I Am Thankful For 12/1 Its A Mystery 11/11 Blogging 11/11 Always Remember 10/27 7 Billon People 10/27 My Book 10/16 My Favorite Animal 10/10 Fox Run Park 9/28 Ban Books? 9/28 Math? Huh? 9/25 MThe Funniest Thing That Happened To Me 9/12 Rachel’s Challenge 9/8 7 Random Facts 8/30 Student Entries

Although this video was tricky to figure out, I finally got it. What happened was that they did not “carry over”. The easiest way for me to explain this is by addition. If you have a lot of numbers like they did you have to do something special when you add. First you add the ones column. If the sum is more than ten you carry the tens value over to the tens column. What they did wrong is that they counted what should’ve been tens as ones. Another set of numbers that could work is 4x16=28; this is not true because 16x4 really equals 64.

Article posted September 22, 2011 at 10:19 PM • comment (1) • Reads 148 • Return to Blog List