单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,.,*,十几减6,5,4,3,2,湖小姚佳,1,.,10-6=,10-5=,10-7=,10-4=,10-9=,10-8=,10-3=,10-2=,4,5,3,6,1,2,7,8,2,.,6+（）=12,5+（）=14,4+（）=11,3+（）=12,6,9,7,9,3,.,4,.,6,8,8,6,5,.,9,3,3,9,6,.,5,7,6,9,5,9,7,.,9,8,7,10,9,8,10,8,6,8,.,9,.,10,.,11,.,12,.,13,.,14,.,