①46+24=
②72﹣48=
③35+(50﹣18)=
④63﹣(75﹣43)=
①9×3﹣7=
②6×4+40=
③58﹣(14+6)=
④16+(73﹣58)=
45+26+18= 74-18+22= 81-38-27=
45+8= 26+47= 92-7=
29+15= 64-27= 35+63=
54+35= 28+49= 62-27=
82-37= 85-32= 46+24=
90-54= 38+44= 70-7=
29+26= 56-33= 53-45=
45+375 18+1927 16+27+4386
82-532 75-3639 58-(27-14) 17