I had a whole other lesson but then I was like na I'll just put this here b/c the other wasn't very interesting to me .

we are going to look at 13x 

13x 1 = 13 ...13 or partial sum 13 -94,85,08,76,355,003,445

13x3=39...39 or partial sum 12 - 66,93,84,75,002,552,

13x5=65..... sum 11 or partial sum 11 , 92, 11 as a pair, 83,74,65,001 , 

13x7=91 ...10 or partial sum 10 , 91,82,73,64,55,442,334 

13x9=112 , 56 is a partial , normally if you see 112 then you are going to see that come back with 66 pair..

so did we have 13 and all negative numbers included in the x's section. If you get a 13 shown like that then look for the partial sum of one of the numbers or the number to show . example

see how that worked