9.3/4+99.3/4+999.3
2个回答

9.3/4+99.3/4+999.3

=(9.3+0.7)/4+(99.3+0.7)/4+(999.3+0.7)-0.7-0.7/4-0.7/4

=10/4+100/4+1000-0.7-0.7/2

=2.5+25+1000-0.7-0.35

=1027.5-1.05

=1026.45