A. 101*49简算
B. 101×49简算
101×49简算:101×49=(100+1)x49=100x49+1x49=4900+49=4949
C. 49乘101减49怎样简便计算
49×101=49×100+49=4949
D. 49×101用简便计算怎么算
简便计算49×101=49×(100+1)=49×100+49=4900+49=4949