19.56×17.39+82.61×19.56=
1) 19.56×17.39=340.1484
2) 82.61×19.56=1615.8516
3) 340.1484+1615.8516=1956.
19.56×17.39+82.61×19.56=
1) 19.56×17.39=340.1484
2) 82.61×19.56=1615.8516
3) 340.1484+1615.8516=1956.