19.94+99.7×99.8

19.94+99.7×99.8 19.94+99.7×99.8 help me 巧算 99.6+99.8+99.7+99.1 99.9+99.8-99.7=?简便计算 简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1 100+99.9-99.8-99.7+99.6+99.5-99.4-99.3+…...+0.4+0.3-0.2-0.1 小学数学,递等式100+99.9-99.8-99.7+99.6+99.5-99.4-99.3+……+0.4+0.3-0.2-0.1= matlab里的问题,>> n=2:40;>> a(n)=[102.0 101.9 102.0 102.6 100.9 100.0 100.3 100.0 100.1 100.0 100.0 100.2 100.0 99.9 99.8 99.8 99.9 100.0 99.9 99.7 99.8 99.8 99.9 99.9 99.9 99.9 99.6 99.9 100.0 100.3 100.3 100.1 100.1 100.2 100.6 100.8 101.6 102. 1.1994+199.4+19.94+1.994 1994+199.4+19.94+1.994 20.06×1995－19.94×2006 巧算：1994+199.4+19.94+1.994 递等式计算：98*99.8+99.8 简便计算：99.8² 99.8％化成最简分数 9.8+99.8+999.8+9999. dna亲子鉴定99.8%是什么意思 （-99.8）的平方