(1)个位上,6+7=13,向十位进一,十位上,1+2+2=5,可得出,26+27=53,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/08f790529822720e3249294b78cb0a46f31fabf8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(2)个位上,12-3=9,被减数个位上的数字是2,十位上,9-1-2=6,可得出,92-23=69,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7acb0a46f21fbe092fd908a568600c338644adf8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(3)个位上,9-3=6,十位上,9-2=7,可得出,99-23=76,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bf096b63f6246b604b8979c5e8f81a4c500fa2f8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(4)个位上,3+4=7,十位上,7+2=9,可得出,73+24=97,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0d338744ebf81a4c1ab52778d42a6059242da6f8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(5)由乘法口诀七九六十三,可得,9×7=63,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea4374c852d639b6003bf3b3f8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(6)由乘法口诀六九五十四,可得,6×9=54,由以上推算可得竖式是:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f7246b600c338744a259e4cd520fd9f9d62aa0e7?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)