790-164=626, 253+96=349, 985-155=830, 239+181=420,465-272=193,380+36=416,487-239=248,640+196=836,352-145=207, 370+184=554, 453-342=111, 280+40=320, 750-128=624, 490+160=650,860-139=721,380+240=620
62*2=124,270/9=30,59*8=472 426/6=71, 260*4=1040, 327/3=109, 438*2=876, 273/3=91