Mandarinmom Posted September 1, 2010 Share Posted September 1, 2010 Which grade of Singapore math has two-digit dividends? I cannot find it. Thanks! Quote Link to comment Share on other sites More sharing options...
Crimson Wife Posted September 1, 2010 Share Posted September 1, 2010 I believe it's in 5A. Quote Link to comment Share on other sites More sharing options...
MangoMama Posted September 2, 2010 Share Posted September 2, 2010 yes, I think it's 5A as well. Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted September 2, 2010 Share Posted September 2, 2010 2-digit dividends are in 3A. 2-digit divisors are in 5A. :) eta: that's in US edition - I don't have Standards. Quote Link to comment Share on other sites More sharing options...
nmoira Posted September 2, 2010 Share Posted September 2, 2010 (edited) 2-digit divisors are in 5A. :) eta: that's in US edition - I don't have Standards. 2-digit divisors are in 4A in the US edition. ETA: -- According to the scope and sequence, it's 5A, but I know DD the Elder did it in 4A because that was the only thing we were waiting for before starting LOF, and she didn't continue with Singapore afterwards. ETA2: -- unless I've gone dotty Edited September 2, 2010 by nmoira Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted September 2, 2010 Share Posted September 2, 2010 (edited) 2-digit divisors are in 4A in the US edition. The section in 4A is "division by a 1-digit number and by 10", so technically true, but it doesn't teach any 2-digit divisors other than 10 - the whole 'estimate then multiply' thing is in 5A. eta: Had to check 'cause I thought I might be going dotty eta2: But I still have had all 3 kids do LOF Fractions after 4B with no problems whatsoever. Was I supposed to wait? :tongue_smilie: Edited September 2, 2010 by matroyshka Quote Link to comment Share on other sites More sharing options...
nmoira Posted September 2, 2010 Share Posted September 2, 2010 The section in 4A is "division by a 1-digit number and by 10", so technically true, but it doesn't teach any 2-digit divisors other than 10 - the whole 'estimate then multiply' thing is in 5A.I don't have the text on hand, but she did do these. Maybe in the IP? Or maybe I got fed up and just showed her how. I'll check the IP. Quote Link to comment Share on other sites More sharing options...
nmoira Posted September 2, 2010 Share Posted September 2, 2010 The section in 4A is "division by a 1-digit number and by 10", so technically true, but it doesn't teach any 2-digit divisors other than 10 - the whole 'estimate then multiply' thing is in 5A. eta: Had to check 'cause I thought I might be going dotty eta2: But I still have had all 3 kids do LOF Fractions after 4B with no problems whatsoever. Was I supposed to wait? :tongue_smilie: :tongue_smilie: I just looked at the text. It was the division by 10's she did. That was enough, because it doesn't just have them chop a zero off the end, but rather is done using the traditional vertical algorithm. There, I feel a bit better now. LoF only requires that the student can do calculations with multi-digit divisors, and that's not a big stretch once they know the basic algorithm. :) Quote Link to comment Share on other sites More sharing options...
Mandarinmom Posted September 2, 2010 Author Share Posted September 2, 2010 Thank you ladies. It is in 5a, I have also found it in singapore math scope and sequence. Divisors - that is what I was looking for. We used Saddlier-oxford math last year, and it was in the end of 4th grade book. I was wondering how come it is not in new Math+ K12. The probably will have it too in 5th grade. Lena Quote Link to comment Share on other sites More sharing options...
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