fnhp.net
当前位置:首页 >> 9.8 24简便计算 >>

9.8 24简便计算

9.8×25的简便计算简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个很复杂的式子变得很容易计算出得数

9.8x124简便方法计算9.8x124 =(10-0.2)x124 =124x10-124x0.2 =1240-24.8 =1240-24-0.8 =1216-0.8 =1215.2 朋友,请及时

9.8x124用简便方法计算?9.8*124 =(10-0.2)*124 =124*10-124*0.2 =1240-24.8 =1215.2

9.8X25的简便计算9.8X25=(10-0.2)×25=10×25-0.2×25=250-5=245

9.8*14用简便方法计算,9.8*14=(10-0.2)*14 乘法分配律=10*14-0.2*14 =140-2.8=137.2

9.8乘2.5的简便计算原式=(10-0.2)×2.5=10×2.5-0.2×2.5=25-0.5=24.5

24.459.8简便方法计算24.459.8 =24.45-10+0.2 =14.45+0.2 =14.65

9.8×2.5怎样简便计算?9.8×2.5简算: 9.8×2.5 =2.5×(10-0.2) =2.5×10-2.5×0.2 =25-0.5 =24.5 扩展资料 简算方法: 利用

9.8*25(简便计算,递等式)(10-0.2)✘2.5=10✘2.5-0.2✘2.5=25-0.5=24.5

9.8乘2.5的简便计算2.5X9.8 =(10-0.2)x2.5 =10X2.5-0.2×2.5 =25-0.5 =24.5

zxtw.net | mydy.net | nmmz.net | jingxinwu.net | krfs.net | 网站首页 | 网站地图
All rights reserved Powered by www.fnhp.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com