Question

3010*2999/3000-299/300 急,还要简便运算

Answer 1

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=30...