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there is

example

7x7=49

6x8=48

1 less/1more timesed together = 1 less than middle number squared

20x20=400

so

19x21=399

also

18x22=396

2 less/2 more timesed together= (2x2) less than middle number squared

17x23=391

16x24=384

I thought of this myself and i didnt copy it from anywhere !!!!!!!!!!!!!!!!!!!!!!!!!

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17y ago

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