用简便方法计算.12%301×79125×72×4728×79十272×798.59+2.57+3.43+5.4749.6
用简便方法计算.12%301×79125×72×4728×79十272×798.59+2.57+3.43+5.4749.62+27.17-19.621546-(546-2...
用简便方法计算.12%301×79125×72×4728×79十272×798.59+2.57+3.43+5.4749.62+27.17-19.621546-(546-239)
展开
1个回答
展开全部
(1)301×79, =(300+1)×79, =300×79+1×79, =23700+79, =23779; (2)125×72×4, =(125×4)×72, =500×72, =36000; (3)728×79十272×79, =79×(728+272), =79×1000, =79000; (4)8.59+2.57+3.43+5.47, =8.59+(2.57+3.43)+5.47, =8.59+6+5.47, =20.06; (5)49.62+27.17-19.62, =49.62-19.62+27.17, =30+27.17, =57.17; (6)1546-(546-239), =1546-546+239, =1000+239, =1239. |
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询