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2 Digit Addition Strategies Explained

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Friends and just want to put together some examples of RCG addition strategy. We have 4 many people ask me why do we have so many strategies? Well, I just want to show you and explain to you that we see students strategies ways of finding a Christmas sir because we're not on one with the small typo learner associates. You can learn. Better understanding this is Linda. St.. More critical someone start by doing the build it strategy. build it I'm going to build. 3 + 31 friends with manipulative we would start is RG3 Told 3 123 And we would smell 510 6. 123 there we have to be 3 plus 30111 blocks and then once 233-1064 the 30 Then we telus unit Adam all together starting with the one. 1234 than the one slice to school for 4 and then we're going to pop by 10 star 10 blocks 10:20. 34 t 56 t 70 + 80 and that is not home students don't have the missing list. So they have been far, too. draw 612-3495 and then 319 we've got three six. 12344 The One This is 6/8 + 60. Did you get right there? next we have hundred and twenty chart and let's say we're going to do this do. 1 + 24 and it is 120 chart strategy what we do is we tell the students that we put our finger on the base. Sweet cakes, and we move down. Piranha Piranha good for you were at we're going to move forward for spot. the how that looks like chart right here As we find 61 which is right here. We move down to swap one. Nestle So 123 land on 81 and then here for so forward for spaces. 1234 and you'll start as soon as we receive was 80. Just one other way call me. Next we have our number one. So our number one looks like this. We were adding 2 digit number. 30 3 less 20 / I want to tell the students is that we always start with the big number and we have to draw. Airlines when I tell them it says this is dean jump on a number line. We jump forward Subway, we're going to put the first number before we start with z. Weird unless I got to add 24 most part about adding 25. Let's just can't job job by tell them to break this apart to an expanded form and that case. 25 Smart would be 20 + 5 still something by 20th hard, so we can break 20th part one more time and then plus. Justin jump out since we're going to do 210 Jeff. I'm at 210 jump and you'll notice ms. Fry. Exactly where 33 is unless we count by 10 we would land on. 3 Warm you the jump on? He's me Iii. I have 5 to ask. So tell soon as you can house 5 if you want to break it apart. You know that there are ones and the number one two three four five? + 1 + 1 + 1 + 1 + 1 let's double check and make sure we have one two three four 53 + 184 + 1 more is 851 more 61 Morris. 7 John We land on the seat. But not least we have a break apart. Let me know. Thanks lane with break apart look. Frank apart We're playing inversion expanded form I'm one of the forms in the seat of 2.2. Is one of the season 2.2 as soon as possible. to do what's 43 +? how we serve how many west You of the 4 and it's in space. That's 40. What's the 3 the 1 slice? It's free. Bentley have to break apart 16 Please do that with. Value of the one in the same place is 10 the value of this in the one place. I'm only on those sir. Start with our one. Hart with this I mean comma I'm sorry. 6 + 3 is 9 + there will start with 40 because it's the big number and we found on 10:40 in Riyadh. Please give us our answer 50 + 9 expanded form for the seats.

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2 Digit Addition Strategies Explained

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