 Okay guys, today we are starting something brand new, but before we start, everybody eyes on the whiteboard. We're gonna go back a little bit in time. On your whiteboard, can you write 654,000 289 ones in standard form. Standard form. 654,000 289 ones in standard form. When you think you have it, compare with your neighbor. If it's different, figure out why. And thumbs up to me when you and your partner both have it. Luke, you okay? I want it in standard form, sweetie. So, Mirella, help your partner. Does he have it in standard form? That's unit form. Put it in standard form. Mirella, does he have it? Luke, does Mirella have it? Excellent. Okay. Don't erase it. You should have 654,289. Now, can you write 245,164 ones in standard form. Don't erase. Don't erase. Add a new number. When you think you have it, check with your neighbor. Do you need a marker? 245,164. Thumbs up if you and your partner both have it. Good. Now, can you add, oops, can you add both numbers using the standard algorithm? Can you add them both up using the standard algorithm? When you think you have the answer, check in with your partner. If it's different, figure out why. If you need to erase something and re-line your numbers up, that's fine. Standard algorithm. Go ahead and add them. Check in with somebody when you think you have it. Talk to each other. Jack, do you and Richie both have it? And you don't have to whisper, boys. You could talk. I have eight. So, do you guys have the same thing? So, what are you gonna do? Well, you gotta talk it out and figure out who's, what's up? Look at them carefully and see if you can figure out where that somebody's wrong. Oh, I think I put 255 here. There we go. Did it match? Yep. Did you guys match? Thumbs up. I see lots of thumbs up so far. Great. Okay, erase your boards.