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78x22竖式计算题

56x22竖式如下答案是1232

=506如图所示满意的话,记得采纳哦

78x2900=226200 78x 2900 702 156 226200

78x62=4836 7 8x 6 2 1 5 64684836

98*22=2156 竖式如下图

78x23+23x22=78x23+22x23=(78+22)x23=100x23=2300

49x78十78用乘法分配律进行简便计算(递等式49*78+78=(49+7)*78=50*78=100*78/2=7800/2=3900

答:78x24十24x22 =24*(78+22) =24*100 =2400

22 * 38 836

78 * 46 = 3588

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