(1)(467+36×3)÷23 (2)640÷32+15×20 (3)(43×15-321)÷36 (4)405×(20-182÷13

2024-11-01 12:28:54
推荐回答(1个)
回答(1):

(1)原式=(467+108)÷23
                =575÷23
                =25
(2)原式=20+300
                =320
  
(3)原式=(645-321)÷36
                =324÷36
                =9
(4)原式= 405×(20-14)
                = 405×6
                =2430