84乘99用简便方法计算
用简便方法计算84×99 -
=84x(100-1)=8400-84 =8316
=84×100-84×1 =84100-84 =84016
=84x(100-1)=8400-84 =8316
=84×100-84×1 =84100-84 =84016
84×99 =84×100-84 =8400-84 =8316
84乘99 =84x(100-1)=84x100-84x1 =8400-84 =8316
99x84=?简便计算,过程 -
回答:99x84 =(100-1)x84 =100x84-1x84 =8400一84 =8316
84×99 =84×(100-1)=8400 - 84 =8316
用简便方法计算 84×99 -
答案:解析: 8316 8316
99可以看成100-1,即用100减1的差乘84。即算式为:(100-1)×84 脱式计算为:(100-1)×84 =100×84-1×84 =8400-84 =8316 (这些全部都是我自己打出来的,我要是复制别人的我就遭雷劈)
84✖️99最简便的方法怎么写? -
84×99把99写成100-1,上式变成:84×99 =84×(100-1)=84×100-84×1 =8400-84 =8316
99乘84简便算法99*84 100*84-84=8400-84