( 1 ) 989 - 423 = ( 2 ) 279 - 182 = (3)433 + 726 = ( 4 ) 691 - 155 = (5)602 + 196 = ( 6 ) 720 + 332 = ( 7 ) 445 + 251 = (8)959 + 495 = ( 9 ) 980 - 412 = (10)422 + 360 = ( 11 ) 292 - 255 = ( 12 ) 539 - 531 = ( 15 ) 792 + 146 = ( 16 ) 231 - 108 = (17)952 - 726 = ( 18 ) 165 + 241 = (19)471 + 185 = ( 20 ) 395 + 291 = ( 21 ) 357 - 182 = (22)759 + 450 = ( 23 ) 851 + 468 = (24)939 - 155 = ( 25 ) 488 - 257 = ( 26 ) 879 + 667 = ( 28 ) 393 - 208 = ( 29 ) 952 + 249 = (30)966 - 252 = ( 31 ) 690 + 762 = (32)794 + 532 = ( 33 ) 360 - 224 = ( 34 ) 877 - 482 = (35)703 - 560 = ( 36 ) 788 + 459 = (37)335 - 277 = ( 38 ) 898 + 184 = ( 39 ) 377 - 124 = (13)952 + 234 = ( 14 ) 335 + 441 = (27)482 - 285 = (40)122 + 160 = ( 1 ) 699 - 547 = ( 2 ) 171 + 106 = (3)896 - 478 = ( 4 ) 348 + 222 = (5)343 - 138 = ( 6 ) 494