(1)27 + 46 =(2)90 + 47 =(3)18 + 15 =(4)92 + 65 =(5)18 + 53 =(6)29 + 32 =(7)14 + 56 =(8)72 + 76 =(9)71 + 68 =(10)39 + 79 =(11)64 + 60 =(12)38 + 69 =(13)83 + 62 =(14)12 + 98 =(15)17 + 84 =(1)175 + 157 =(2)645 + 239 =(3)808 + 213 =(4)256 + 775 =(5)607 + 914 =(6)352 + 708 =(7)766 + 792 =(8)970 + 602 =(9)343 + 801 =(10)916 + 861 =(11)806 + 487 =(12)691 + 400 =(13)106 + 537 =(14)353 + 939 =(15)328 + 114 =(1)810 - 125 =(2)648 - 585 =(3)398