I mean that 'new way' could be the old way(without using calculator)

I mean that 'new way' could be the old way(without using calculator)
Replying to: Re: Ever tried to figure out 2^20, 6^8.. in your head? -- Khan	Post Reply Forum

Mao Clone

03/31/2019, 19:25:47

BTW,its easier than u think

7^4=(50-1)^2=2500-100+1

7^8=(2400+1)^2=5760000+4800+1

One should be able to finish the rest in the head

珍珠湾