4,20,54,112,(),324 A.200 B.232 C.256 D.276
4, 3/2, 20/27, 7/16, 36/125, () A.39/144 B.11/54 C.68/196 D.7
112,2,324,548,() A.8816 B.823 C.8612 D.9
-1,0,8,25,54,()。 A.87 B.99 C.101 D.112
4,9,36,()。 A.54 B.72 C.144 D.324
2, 4, 20, 76, ()A.300 B.308 C.316 D.324
竖式计算。(1) 112 × 36(2)143 × 18 (3)109 × 54(4)216 × 23