4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)
4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)
(2.15﹢5.17+3.62)×(5.17+2.15+8.5)-(3.62+2.15+8.5+5.17)×(2.15+
10.15-(6.25-3.75)+7.85
请问 4.02-3.5+0.98、5.17-1.8-3.2 如何简便计算,
一道简单的巧算题1+0.99-0.98-0.97+0.96+0.95-0,94-0.93+……+0.04+0.03-0.
3.75×4.8+63.5×0.48-48×0.01简便计算
- |- 0.25 |+(+4分之3)-(-0.125)+|-0.75|
10-9.8+9.6-9.4+9.2-9+...+0.8-0.6+0.4-0.2
简算1-2+3-4+5-6+7-8+…+95-96+97-98+99
1+2-3-4+5+6-7-8+9+.+78-79-80+81
机算-1+2+3-4-5+6+7-8-9+10+11-12-……-2005+2006+2007-2008-2009的值?
﹣2+4-6+8-10+...-98+100