A数小数点向右移2位和B数同样大,所以B=100A,A,B之和是1313,所以A=1313÷(1+100)=1313÷101=13,B=1300.
a数:1313÷(100+1)=1313÷101=13b数:1313-13=1300
右移扩大100倍设A为x则B为100xx+100x = 1313x = 13