99ⅹ65简便
65ⅹ99简便计算? -
答:65*99 =65*(100-1)65*100-65*1 =6500-65 =6435
=65×100-65×1 =6500-65 =6435
答:65*99 =65*(100-1)65*100-65*1 =6500-65 =6435
=65×100-65×1 =6500-65 =6435
图望采纳,
脱式计算方法:99ⅹ63 =(100-1)×63 =100×63-1×63 =6300-63 =6237
99ⅹ65 65简便运算? -
99×65+65 =(99+1)×65 =100×65 =6500
99×65+2×65一65 =65×(99+2一1)=65×100 =6500 简便计算。
简便计算99ⅹ63 -
具体用凑整数法,比如该题就凑100的整数来算,具体如下,
如图,
99ⅹ53用简便方法计算? -
记住看到97,98,99这样的都是运用乘法分配律。99看成100-一。这样园诗话乘100x53-53等于5300-53等于5247。
1、你好,很高兴回答你的问题。2、原式=(100-1)66=100*66-66=6600-66=6534