Question

Найди удобный способ вычислений: 164 + 175 + 136 ( 230 + 678) - 118 424 - ( 179 + 124 )

Answer 1

164 + 175 + 136 = ( 164 + 136) + 175 = 300 + 175 = 475

(230 + 678 ) - 118 = 230 + ( 678 - 118 ) = 230 + 560 = 790

424 - ( 179 + 124) = ( 424 - 124 ) - 179 = 300 - 179 = 121