245+35*18 (87+35)*25 10260:36+164 52998:(37+29)
1. 245+35=290 290*18= 5220 2. 87+35=122 122*25= 3050 3. 10260:36 = 285 285+164= 449 4. 37+29=66 52998 : 66 = 803