67:@0.887071:0.943673:0.906385:0.943673:0.906385:0.928923:0.887071:0.928923:0.009657:0.009657
Maths–:@0.144924:0.945129:0.184911:0.945129:0.184911:0.935296:0.144924:0.935296:0.011098:0.006273:0.004406:0.006819:0.005067:0.006324
Primer:@0.184780:0.945129:0.220437:0.945129:0.220437:0.935296:0.184780:0.935296:0.006756:0.004521:0.003124:0.010337:0.006400:0.004521
Good:@0.088601:0.966039:0.118582:0.966039:0.118582:0.956207:0.088601:0.956207:0.009283:0.006883:0.006883:0.006933
Very Good:@0.164239:0.966039:0.221371:0.966039:0.221371:0.956207:0.164239:0.956207:0.006838:0.006463:0.004846:0.005384:0.003619:0.009283:0.006883:0.006883:0.006933
Excellent:@0.269542:0.966039:0.317453:0.966039:0.317453:0.956207:0.269542:0.956207:0.006997:0.005473:0.005968:0.006463:0.002908:0.002908:0.006463:0.006997:0.003733
SUBTRACTION OF TWO-DIGIT NUMBERS:@0.084520:0.106213:0.794903:0.106213:0.794903:0.076960:0.084520:0.076960:0.021841:0.025165:0.021381:0.021050:0.022045:0.021982:0.021445:0.021050:0.019313:0.026323:0.026761:0.011788:0.026323:0.021650:0.011788:0.021050:0.033438:0.026323:0.015840:0.024841:0.019313:0.026076:0.019313:0.021050:0.011788:0.026761:0.025166:0.032528:0.021381:0.021714:0.022045:0.021855
SUBTRACTION OF TWO-DIGIT NUMBERS:@0.084512:0.106213:0.794896:0.106213:0.794896:0.076960:0.084512:0.076960:0.021841:0.025165:0.021381:0.021050:0.022045:0.021982:0.021445:0.021050:0.019313:0.026323:0.026761:0.011788:0.026323:0.021650:0.011788:0.021050:0.033438:0.026323:0.015840:0.024841:0.019313:0.026076:0.019313:0.021050:0.011788:0.026761:0.025166:0.032528:0.021381:0.021714:0.022045:0.021855
O:@0.814350:0.399568:0.836414:0.399568:0.836414:0.374986:0.814350:0.374986:0.022063
3:@0.747245:0.438449:0.764833:0.438449:0.764833:0.413867:0.747245:0.413867:0.017587
5:@0.818848:0.438449:0.836435:0.438449:0.836435:0.413867:0.818848:0.413867:0.017587
– 2:@0.710404:0.467268:0.764833:0.467268:0.764833:0.442686:0.710404:0.442686:0.015873:0.020969:0.017587
0:@0.818848:0.467268:0.836435:0.467268:0.836435:0.442686:0.818848:0.442686:0.017587
T          :@0.747023:0.399568:0.837150:0.399568:0.837150:0.374986:0.747023:0.374986:0.020286:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984
Subtract 0 from 5 (ones digit):@0.163624:0.428835:0.563133:0.428835:0.563133:0.404253:0.163624:0.404253:0.015746:0.017524:0.017365:0.010730:0.012615:0.015492:0.014000:0.010730:0.006984:0.017587:0.006984:0.009619:0.012672:0.016857:0.026413:0.006984:0.017587:0.006984:0.012127:0.016857:0.017714:0.015492:0.013651:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.012127
Subtract 2 from 3 (tens digit):@0.163624:0.457654:0.556727:0.457654:0.556727:0.433072:0.163624:0.433072:0.015746:0.017524:0.017365:0.010730:0.012615:0.015492:0.014000:0.010730:0.006984:0.017587:0.006984:0.009619:0.012672:0.016857:0.026413:0.006984:0.017587:0.006984:0.012127:0.010450:0.015492:0.017714:0.013651:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.012127
O:@0.225815:0.575430:0.247878:0.575430:0.247878:0.550848:0.225815:0.550848:0.022063
3:@0.158710:0.614311:0.176297:0.614311:0.176297:0.589728:0.158710:0.589728:0.017587
5:@0.230312:0.614311:0.247900:0.614311:0.247900:0.589728:0.230312:0.589728:0.017587
–   2:@0.121868:0.643129:0.176297:0.643129:0.176297:0.618547:0.121868:0.618547:0.015873:0.006984:0.006984:0.007000:0.017587
0:@0.230312:0.643129:0.247900:0.643129:0.247900:0.618547:0.230312:0.618547:0.017587
T          :@0.158487:0.575430:0.248614:0.575430:0.248614:0.550848:0.158487:0.550848:0.020286:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984
Step 2 ::@0.423369:0.616129:0.528279:0.616129:0.528279:0.591547:0.423369:0.591547:0.016286:0.011164:0.016857:0.018952:0.006984:0.018794:0.006984:0.008889
 5 minus 0 gives 5.:@0.528295:0.616129:0.775001:0.616129:0.775001:0.591547:0.528295:0.591547:0.006984:0.017587:0.006984:0.026413:0.008825:0.017714:0.017524:0.013651:0.006984:0.017587:0.006984:0.015683:0.008187:0.015376:0.015492:0.013651:0.006984:0.017587:0.006508
5:@0.231294:0.678815:0.248882:0.678815:0.248882:0.654232:0.231294:0.654232:0.017587
O:@0.820066:0.753080:0.842129:0.753080:0.842129:0.728498:0.820066:0.728498:0.022063
3:@0.752961:0.791961:0.770548:0.791961:0.770548:0.767379:0.752961:0.767379:0.017587
5:@0.824563:0.791961:0.842150:0.791961:0.842150:0.767379:0.824563:0.767379:0.017587
–   2:@0.716119:0.820780:0.770548:0.820780:0.770548:0.796198:0.716119:0.796198:0.015873:0.006984:0.006984:0.007001:0.017587
0:@0.824563:0.820780:0.842150:0.820780:0.842150:0.796198:0.824563:0.796198:0.017587
T          :@0.752738:0.753080:0.842865:0.753080:0.842865:0.728498:0.752738:0.728498:0.020286:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984:0.006984
Step 3 ::@0.163625:0.797716:0.268535:0.797716:0.268535:0.773133:0.163625:0.773133:0.016286:0.011164:0.016857:0.018952:0.006984:0.018794:0.006984:0.008889
 3 minus 2 gives 1.:@0.268551:0.797716:0.515256:0.797716:0.515256:0.773133:0.268551:0.773133:0.006984:0.017587:0.006984:0.026413:0.008825:0.017714:0.017524:0.013651:0.006984:0.017587:0.006984:0.015683:0.008187:0.015376:0.015492:0.013651:0.006984:0.017587:0.006508
1:@0.753371:0.856515:0.770958:0.856515:0.770958:0.831933:0.753371:0.831933:0.017587
5:@0.825521:0.856472:0.843109:0.856472:0.843109:0.831890:0.825521:0.831890:0.017587
Follow the steps to subtract two-digit numbers::@0.088572:0.328116:0.729409:0.328116:0.729409:0.303533:0.088572:0.303533:0.015798:0.016857:0.008635:0.008635:0.016661:0.024571:0.006984:0.010730:0.017524:0.015492:0.006984:0.013651:0.010472:0.015492:0.017651:0.013651:0.006984:0.010456:0.016857:0.006984:0.013651:0.017524:0.017365:0.010730:0.012599:0.015492:0.014000:0.010730:0.006984:0.010730:0.024217:0.016857:0.010540:0.017619:0.008825:0.015683:0.008825:0.010730:0.006984:0.017714:0.017524:0.026413:0.017365:0.015492:0.013143:0.013651:0.008381
 It is written as under.:@0.193497:0.356934:0.486896:0.356934:0.486896:0.332352:0.193497:0.332352:0.006984:0.010286:0.010730:0.006984:0.008825:0.013651:0.006984:0.024571:0.013143:0.008825:0.010730:0.010477:0.015492:0.017714:0.006984:0.015492:0.013651:0.006984:0.017524:0.017714:0.017619:0.015492:0.010033:0.006508
Step 1 ::@0.088570:0.356934:0.193480:0.356934:0.193480:0.332352:0.088570:0.332352:0.016286:0.011164:0.016857:0.018952:0.006984:0.018794:0.006984:0.008889
20 and 35 both are two digit numbers. In a :@0.139155:0.198145:0.721062:0.198145:0.721062:0.173562:0.139155:0.173562:0.017587:0.017587:0.006984:0.015492:0.017714:0.017619:0.006984:0.017587:0.017587:0.006984:0.017365:0.016857:0.010730:0.017524:0.006984:0.015492:0.012668:0.015492:0.006984:0.010730:0.024191:0.016857:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.006984:0.017714:0.017524:0.026413:0.017365:0.015492:0.013143:0.013651:0.006508:0.006984:0.010286:0.017714:0.006984:0.015492:0.006984
two digit number, we put right side digit is on :@0.120153:0.226963:0.740112:0.226963:0.740112:0.202381:0.120153:0.202381:0.010730:0.024190:0.016857:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.006984:0.017714:0.017524:0.026413:0.017365:0.015492:0.010044:0.006508:0.006984:0.024185:0.015492:0.006984:0.017651:0.017524:0.010730:0.006984:0.013143:0.008825:0.015477:0.017524:0.010730:0.006984:0.013651:0.008825:0.017619:0.015492:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.006984:0.008825:0.013651:0.006984:0.016857:0.017714:0.006984
ones place and left side digit is on tens place.:@0.125376:0.255781:0.727887:0.255781:0.727887:0.231199:0.125376:0.231199:0.016857:0.017714:0.015492:0.013651:0.006984:0.017651:0.008635:0.015492:0.014000:0.015492:0.006984:0.015492:0.017714:0.017619:0.006984:0.008635:0.015492:0.009619:0.010730:0.006984:0.013651:0.008825:0.017619:0.015492:0.006984:0.017619:0.008825:0.015683:0.008825:0.010730:0.006984:0.008825:0.013651:0.006984:0.016857:0.017714:0.006984:0.010416:0.015492:0.017714:0.013651:0.006984:0.017651:0.008635:0.015492:0.014000:0.015492:0.006508
Subtract ::@0.260443:0.143724:0.399497:0.143724:0.399497:0.119142:0.260443:0.119142:0.016286:0.018952:0.018762:0.011587:0.014133:0.016984:0.014889:0.011587:0.006984:0.008889
 :@0.399502:0.143724:0.406487:0.143724:0.406487:0.119142:0.399502:0.119142:0.006984
20 from 35:@0.406491:0.143724:0.556333:0.143724:0.556333:0.119142:0.406491:0.119142:0.017587:0.017587:0.006984:0.009619:0.012636:0.016857:0.026413:0.006984:0.017587:0.017587
So, we can say that the subtraction of :@0.088572:0.889253:0.603890:0.889253:0.603890:0.864671:0.088572:0.864671:0.015746:0.016857:0.006508:0.008227:0.024180:0.015492:0.008221:0.014000:0.015492:0.017714:0.008243:0.013651:0.014873:0.016000:0.008221:0.010730:0.017524:0.015492:0.010730:0.008253:0.010730:0.017524:0.015492:0.008227:0.013651:0.017524:0.017365:0.010730:0.012599:0.015492:0.014000:0.010730:0.008825:0.016857:0.017714:0.008242:0.016857:0.009619:0.006984
20 from 35 is 15.:@0.088570:0.918072:0.316539:0.918072:0.316539:0.893490:0.088570:0.893490:0.017587:0.017587:0.006984:0.009619:0.012635:0.016857:0.026413:0.006984:0.017587:0.017587:0.006984:0.008825:0.013651:0.006984:0.017587:0.017587:0.006508