A. 101*49簡算
B. 101×49簡算
101×49簡算:101×49=(100+1)x49=100x49+1x49=4900+49=4949
C. 49乘101減49怎樣簡便計算
49×101=49×100+49=4949
D. 49×101用簡便計算怎麼算
簡便計算49×101=49×(100+1)=49×100+49=4900+49=4949