用竖式计算并验算。698÷4= 808÷4=
计算题(1)2222×0.17+33.33×4+666.6×0.9(2)1.4477÷0.0031-19.816×10.25+36.114
计算题3.83×76+11×9.25+427×0.24
计算下面各题,能简便的要简便。(1)(12.6+4.8)÷0.6 (2)9.8×2.1+98×0.79
4.83×0.59+0.41×1.59-0.324×5.9
199.8×19.99-199.9×19.97