(1)解: 40-20=20 14-5=9 15-8=7 40+8+30 =48+30 =78 故答案为:20;9;7;78 (2)解: 30+32=62 65+8=73 50-44=6 36-(4+6) =36-10 =26 故答案为:62;73;6;26 (3)解: 84-4=80 56-9=47 60+5=65 7+18-9 =25-9 =16 故答案为:80;47;65;16 (4)解: ...