302÷57的竖式计算如下:
![](https://iknow-pic.cdn.bcebos.com/64380cd7912397dd66a53b085782b2b7d1a287da?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
解答过程如下:
(1)第一步按照除法竖式的计算法则,先写出被除数,除数和除号,如下图所示:
![](https://iknow-pic.cdn.bcebos.com/4afbfbedab64034f28bc600aa1c379310a551d4c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(2)第二步从被除数的高位起,先看除数有几位,再用除数试除被除数的前几位,如果它比除数小,再试除多一位数;除到被除数的哪一位,就在那一位上面写上商。30不够57除,需要看到30的下一位302,302除以57,可以在302的个位上写5,如下图:
![](https://iknow-pic.cdn.bcebos.com/4afbfbedab64034f290e610aa1c379310b551dfe?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(3)然后用5乘以57,乘得的结果写在对应的数位下面,如下图所示:
![](https://iknow-pic.cdn.bcebos.com/241f95cad1c8a786dc46e8026909c93d70cf5049?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(4)作差,用302-285,得到的结果为17,留作余数,如下图所示:
![](https://iknow-pic.cdn.bcebos.com/b151f8198618367ab2dcddd120738bd4b31ce561?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)