1 盒乒乓球有6个，体育队买来7盒，一共有多少个乒乓球？.e;i4j4n2h5q+c,Y)w
算式：提示;f:u*c/F*Q*R*m+m.e;i4j4n2h5q+c,Y)w
答；一共有/g+F/[7G2k4|3x;g-g+c*P9_个乒乓球。.e;i4j4n2h5q+c,Y)w