小五數學題(15點)

1,10,20,30,40,50,60,70,80

88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 72 70 68 66 64 62 60 58 56 54 52 50 48 46 44 42 40 38 36 34 33 30 25 22 18 13 7

1,10,20,30,40,50,60

層數1,4,6,8,10,12,14,16,18,20,24,26,28,30,34,36,38,40,42,44,46,48,50,52,54,56,58,60,64,66,68,70,70,72,74,76,78,80,82,84,86,88
降機42台

1,20,40,60,80