1)46-21190+27608:682)32087-84(63524:308)+673) (52500:375-75)107+8464)(257 + 63945 : 315)87-30015)78(85491:413+236)-456

1) 46 - 21 * 190 + 27608 : 68 = 46 - 3990 + 27608 : 68 = 46 - 3990 + 406 = - 3944 + 406 = - 3538;

2) 32087 - 84 * (63524 : 308) + 67 = 32087 - 84 * 206,25 + 67 = 32087 - 17325 + 67 = 14762 + 67 = 14829;

3) (52500 : 375 - 75) * 107 + 846 = (140 - 75) * 107 + 846 = 65 * 107 + 846 = 6955 + 846 = 7801;

4) (257 + 63945 : 315) * 87 - 3001 = (257 + 203) * 87 - 3001 = 460 * 87 - 3001 = 40020 - 3001 = 37019;

5) 78 * (85491 : 413 + 236) - 456 = 78 * (207 + 236) - 456 = 78 * 443 - 456 = 34554 - 456 = 34098/