一、计算下面各题 90×12-800 252÷4+37 86×25+2023 = = = = = = 468÷6+278 145×28+107 905×32-2023 = = = = = = 200-15×8 200+16×7 200-150÷5 = = = = = = 900+105×8 2023-595÷7 396-25×6 = = = = = = (200-15)×8 ( 200+16)×7 (200-150)÷5 = = = = = = (900+105)×8 (2023-2023)÷7 (396-36)×6 = = = = = = 90×(12-8 ) 405÷(4+5) 86×(25+2023) = = = = = = 468÷(569-563) 145×(28+107) 905×(32-18) = = = = = = 85+125+508 2023-85-627 824+631-31 = = = = = = 285-25+508 2023÷5×36 24×31×56 = = = = = = 441÷7÷9 82×14÷4 824÷2×6 = = = = = = |