1.991+1.992+1.993+...+2.001+2.002+2.003
1.991+1.992+1.993+...+2.001+2.002+2.003
1.001+2.003+1.005+2.007+1.009+2.001+.+1.197+2.199=
某同学测定出物体的长度的三组数据分别是 2.001 分米、 2.003 分米、2.004 分米.求这个物体的长度是多少?
200.3+20.03+2.003+0.2003=
9.8*20.02/2.002+99*98
巧算0.991+1.992+2.993+3.994
1991+199.1+19.91+1.991.
(1.992+19.92+199.2)/0.111 简便计算
200.1*19.99-20.01*199.7-2.001*1.998=
12又20分之3+2.003等于多少
(2008+200.8+20.08+2.008+1992+199.2+19.92+1.992)怎么写?
简便运算 2008+200.8+20.08+200.8+1992+199.2+19.92+1.992