计算下面各题，能用简便方法的用简便方法计算
8.42+8.46+8.54+8.58=         51.26﹣8.76﹣1.24=           9.5+4.85﹣6.23=
125×7×32=                  19×36﹣36×12=              （124﹣85）×12÷26=