oblicz sprytnie: 247+48 699+213 288+313 896+28 299+199
musze mieć z 9.13.2013r. na 16.9.3013r.
niech ktoś napisze prosze! :P
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(250-3)+(48700-1)+(213300-12)+(313900-4)+(28300-1)+(200-1)=
(250+200)+(28300+48700)+(213300+313900)-(3+1+12+4+1+1)=
450 +( 77000 +213000)+313000+(300+700)+200-22=
450+290000+314200-22=604650-22=604628
38*4 = 152
55*6 = 330
77*12 = 924
23*15 = 345
38*4 = 152
213*4 = 852
55*6 = 330
77*12 = 924
23*15 = 345