5.63+4.63+3.63+2.63+63
=63(4.63+3.63+2.63+63+1)
=63(252+189+126+64)
=63.631=39753
nha
5.63+4.63+3.63+2.63+63
=63(5+4+3+2+1)
=63.15
=945
học tốt nha bn
\(5\times63+4\times63+3\times63+63\times2+63\)
\(=63\left(5+4+3+2+1\right)\)
\(=63\times15=945\)