来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/11 21:30:59
3010*2999/3000-299/300 急,还要简便运算
3010×2999/3000-299/300
=(3000+10)×2999/3000-299/300
=3000×2999/3000+10×2999/3000-299/300
=2999+2999/300-299/300
=2999+(3000-1)/300-299/300
=2999+3000/300-1/300-299/300
=2999+10-(1/300+299/300)
=3009-1
=3008