1999998+199998+19998+1998+198+88
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/01 07:52:50
1999998+199998+19998+1998+198+88
1999998+199998+19998+1998+198+88
1999998+199998+19998+1998+198+88
1999998+199998+19998+1998+198+88
=1999998+2+199998+2+19998+2+1998+2+198+2+88-10
=2000000+200000+20000+2000+200+78
=2222278
=2000000+200000+20000+2000+200+88-2*6=2222276
原式=2000000+200000+20000+2000+200+100-2×5-12= 2222300-22= 2222278
2000000-2+200000-2+20000-2+2000-2+200-2+100-12=22222078
解 :原式=(2000000-2)+(200000-2)+(20000-2)+(2000-2)+(200-2)+88
=2000000+200000+20000+2000+200-10+88
=2222200-10+88
=2222278
1999998+199998+19998+1998+198+88
= 2000000-2+200000-2+20000-2+2000-2+200-2+88
= 2222200+88-10
= 2222278
2220280计算得出
2000000-2+200000-2+20000-2+2000-2+200-2+100-12
=2222300-20
=2222280
1999,998+199,998+19,998+1,998+198+88
=2000,000-2+200,000-2+20,000-2+2,000-2+200-2+100-12
=2222,200+100-22
=2222,300-22
=2222,278