Đặt tính rồi tính a) 54 172 x 3 b) 276 x 412 c) 23 x 46 d) 385 x 200 e) 83 x 11 f) 960 x 70

a) 54 172 x 3 = 162 516                       b) 276 x 412 = 113 712

c) 23 x 46 = 1058                                d) 385 x 200 = 77 000

e) 83 x 11 = 913                                  f) 960 x 70 = 67 200