Reply to Did anyone else learn "Dot Math" growing up? If not, how were you taught to add and subtract?

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[quote=Anonymous][quote=Anonymous]Born in '74 and STILL use the dot method for arithmetic.  It's ludicrous, but it's the only way that I can add properly.  [/quote]

I'm gonna guess you are not in STEM.  Born in '70, never heard of dot math.  That sounds slow.

To other PP that stated 6 + 7 = 13 is memorization, at some point, it does become memorization, but in the beginning, it is not.  The way I taught my kids is by using a system like an abacus (take away, add more), with fingers when they were in preK/k.  I taught my DC years back, aged 9 now, that the way I do it is by going up to the nearest 0... and then add the remaining number:

6 + 7 -- &gt; nearest 0 to 7 is 10... so to get to 10 from 7 is 3
6 -3 = 3  ---  &gt; 10 + 3 = 13

Most 1st/2nd graders can do the two steps in their heads.  This method can work for 10's additions, too. Once you go beyond 10's I have to break it down furhter, or do it on paper.  Single digit addition less than 10 just becomes visual I think, then eventually memorization.[/quote]

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