Greg:

I see what he did and why the product didn’t match the correct answer, when he multiplied 70x2 he is really actually multiplying 70x20 because the "2" is in the tens column. SO when adding the product of 70x2 (140) and the product of 70x7 (490) he should have the 140 shifted to the left so that it is 1+0 then 4+4 then 9+0 then lastly 0+0 for a sum of 1890

I'm with you, I fought these new techniques, quick ways, improved ideas and finally gave up and let my wife handle it... :( I don't know what to tell U broHAM...