Math Shortcut Tricks Number Series

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[ganesharelli]

2*2-1=3
4*4-1=15
6*6-1=35
8*8-1=63
10*10-1=99🎉

[rixycatherinethomas]

sir the logic behind this can also be squares of even digits and minus one

[aafaqalisoomro]

we can get by multiplying
3 × 5=15
5× 7=35
7× 9=63
9×11=99😜😇

[BADASS___BOY]

LASTT LOGIC 😂😂😂 8 & 8 = CHOOSE ANY ONE NUMBER (8)
28+8=36
AND ADD 36 + 63 = SEE TTHE ANSWER 😵😵😵

[aditimishra]

Also there is another way like
3×5=15
5×7=35
7×9=63
9×11=99 it's all odd numbers game