81:@0.904366:0.963104:0.932133:0.963104:0.932133:0.941283:0.904366:0.941283:0.000000:0.000000
Matemática:@0.795130:0.956142:0.879896:0.956142:0.879896:0.943479:0.795130:0.943479:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
2.º EGB:@0.829358:0.967458:0.879897:0.967458:0.879897:0.954794:0.829358:0.954794:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
DUA:@0.747830:0.068322:0.791473:0.068322:0.791473:0.048070:0.747830:0.048070:0.000000:0.000000:0.000000
. :@0.791473:0.067693:0.799986:0.067693:0.799986:0.050557:0.791473:0.050557:0.000000:0.000000
Representación:@0.799986:0.067693:0.924113:0.067693:0.924113:0.050792:0.799986:0.050792:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
Para sumar números naturales de dos dígitos, se puede utilizar el :@0.096359:0.101521:0.842521:0.101521:0.842521:0.079712:0.096359:0.079712:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
ábaco, material base diez, la tabla de valor posicional y la semirrecta :@0.096359:0.122643:0.897207:0.122643:0.897207:0.100834:0.096359:0.100834:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
numérica. Se suman primero las unidades y luego las decenas.:@0.096359:0.143766:0.823427:0.143766:0.823427:0.121957:0.096359:0.121957:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
Realizamos la suma, según se indica: 12 + 3 = 15.:@0.096359:0.172018:0.657779:0.172018:0.657779:0.150208:0.096359:0.150208:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
También podemos aplicar operadores sumativos. :@0.096359:0.629605:0.668473:0.629605:0.668473:0.607796:0.096359:0.607796:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
Ábaco:@0.249352:0.218583:0.328014:0.218583:0.328014:0.196774:0.249352:0.196774:0.000000:0.000000:0.000000:0.000000:0.000000
D:@0.119903:0.331116:0.133629:0.331116:0.133629:0.313313:0.119903:0.313313:0.000000
U:@0.164199:0.331116:0.176856:0.331116:0.176856:0.313313:0.164199:0.313313:0.000000
D:@0.250374:0.331116:0.264100:0.331116:0.264100:0.313313:0.250374:0.313313:0.000000
U:@0.294669:0.331116:0.307326:0.331116:0.307326:0.313313:0.294669:0.313313:0.000000
+:@0.210806:0.333647:0.230909:0.333647:0.230909:0.302492:0.210806:0.302492:0.000000
=:@0.341274:0.333647:0.361377:0.333647:0.361377:0.302492:0.341274:0.302492:0.000000
D:@0.386025:0.331116:0.399750:0.331116:0.399750:0.313313:0.386025:0.313313:0.000000
U:@0.430320:0.331116:0.442977:0.331116:0.442977:0.313313:0.430320:0.313313:0.000000
Tabla posicional:@0.112606:0.406671:0.299506:0.406671:0.299506:0.384862:0.112606:0.384862:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
D:@0.188355:0.444548:0.205523:0.444548:0.205523:0.422281:0.188355:0.422281:0.000000
U:@0.240022:0.444548:0.255853:0.444548:0.255853:0.422281:0.240022:0.422281:0.000000
1:@0.190184:0.471902:0.203693:0.471902:0.203693:0.450092:0.190184:0.450092:0.000000
2:@0.241172:0.471902:0.254681:0.471902:0.254681:0.450092:0.241172:0.450092:0.000000
+:@0.147827:0.499185:0.161899:0.499185:0.161899:0.477376:0.147827:0.477376:0.000000
3:@0.241172:0.499185:0.254681:0.499185:0.254681:0.477376:0.241172:0.477376:0.000000
1:@0.190184:0.526468:0.203693:0.526468:0.203693:0.504659:0.190184:0.504659:0.000000
5:@0.241172:0.526468:0.254681:0.526468:0.254681:0.504659:0.241172:0.504659:0.000000
Material base 10:@0.627805:0.218583:0.818575:0.218583:0.818575:0.196774:0.627805:0.196774:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
+:@0.646015:0.296887:0.661596:0.296887:0.661596:0.272233:0.646015:0.272233:0.000000
=:@0.757105:0.296887:0.772686:0.296887:0.772686:0.272233:0.757105:0.272233:0.000000
Semirrecta numérica:@0.522061:0.406671:0.760251:0.406671:0.760251:0.384862:0.522061:0.384862:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000:0.000000
19:@0.856812:0.500477:0.872251:0.500477:0.872251:0.488015:0.856812:0.488015:0.000000:0.000000
18:@0.831657:0.500477:0.847096:0.500477:0.847096:0.488015:0.831657:0.488015:0.000000:0.000000
17:@0.806501:0.500477:0.821940:0.500477:0.821940:0.488015:0.806501:0.488015:0.000000:0.000000
16:@0.781346:0.500477:0.796785:0.500477:0.796785:0.488015:0.781346:0.488015:0.000000:0.000000
15:@0.756191:0.500477:0.771630:0.500477:0.771630:0.488015:0.756191:0.488015:0.000000:0.000000
14:@0.731035:0.500477:0.746474:0.500477:0.746474:0.488015:0.731035:0.488015:0.000000:0.000000
13:@0.705880:0.500477:0.721319:0.500477:0.721319:0.488015:0.705880:0.488015:0.000000:0.000000
12:@0.680724:0.500477:0.696163:0.500477:0.696163:0.488015:0.680724:0.488015:0.000000:0.000000
11:@0.655569:0.500477:0.671008:0.500477:0.671008:0.488015:0.655569:0.488015:0.000000:0.000000
10:@0.630414:0.500477:0.645853:0.500477:0.645853:0.488015:0.630414:0.488015:0.000000:0.000000
9:@0.609118:0.500477:0.616837:0.500477:0.616837:0.488015:0.609118:0.488015:0.000000
8:@0.583963:0.500477:0.591682:0.500477:0.591682:0.488015:0.583963:0.488015:0.000000
7:@0.558807:0.500477:0.566527:0.500477:0.566527:0.488015:0.558807:0.488015:0.000000
6:@0.533652:0.500477:0.541371:0.500477:0.541371:0.488015:0.533652:0.488015:0.000000
5:@0.508496:0.500477:0.516216:0.500477:0.516216:0.488015:0.508496:0.488015:0.000000
4:@0.483421:0.500477:0.491141:0.500477:0.491141:0.488015:0.483421:0.488015:0.000000
3:@0.458199:0.500477:0.465919:0.500477:0.465919:0.488015:0.458199:0.488015:0.000000
1:@0.407902:0.500477:0.415621:0.500477:0.415621:0.488015:0.407902:0.488015:0.000000
2:@0.433057:0.500477:0.440777:0.500477:0.440777:0.488015:0.433057:0.488015:0.000000
0:@0.382760:0.500477:0.390479:0.500477:0.390479:0.488015:0.382760:0.488015:0.000000
6:@0.120471:0.732050:0.133980:0.732050:0.133980:0.710241:0.120471:0.710241:0.000000
4:@0.120471:0.770986:0.133980:0.770986:0.133980:0.749177:0.120471:0.749177:0.000000
11:@0.113716:0.809922:0.140734:0.809922:0.140734:0.788113:0.113716:0.788113:0.000000:0.000000
16:@0.113716:0.848858:0.140734:0.848858:0.140734:0.827049:0.113716:0.827049:0.000000:0.000000
7:@0.120471:0.887794:0.133980:0.887794:0.133980:0.865985:0.120471:0.865985:0.000000
9:@0.254622:0.732050:0.268131:0.732050:0.268131:0.710241:0.254622:0.710241:0.000000
7:@0.254622:0.770986:0.268131:0.770986:0.268131:0.749177:0.254622:0.749177:0.000000
14:@0.247868:0.809922:0.274886:0.809922:0.274886:0.788113:0.247868:0.788113:0.000000:0.000000
19:@0.247868:0.848858:0.274886:0.848858:0.274886:0.827049:0.247868:0.827049:0.000000:0.000000
10:@0.247868:0.887794:0.274886:0.887794:0.274886:0.865985:0.247868:0.865985:0.000000:0.000000
+ 3:@0.176918:0.683978:0.211254:0.683978:0.211254:0.662169:0.176918:0.662169:0.000000:0.000000:0.000000
2:@0.432105:0.732050:0.445615:0.732050:0.445615:0.710241:0.432105:0.710241:0.000000
5:@0.432105:0.770986:0.445615:0.770986:0.445615:0.749177:0.432105:0.749177:0.000000
14:@0.425351:0.809922:0.452369:0.809922:0.452369:0.788113:0.425351:0.788113:0.000000:0.000000
10:@0.425351:0.848858:0.452369:0.848858:0.452369:0.827049:0.425351:0.827049:0.000000:0.000000
12:@0.425351:0.887794:0.452369:0.887794:0.452369:0.865985:0.425351:0.865985:0.000000:0.000000
7:@0.566257:0.732050:0.579766:0.732050:0.579766:0.710241:0.566257:0.710241:0.000000
10:@0.559502:0.770986:0.586521:0.770986:0.586521:0.749177:0.559502:0.749177:0.000000:0.000000
19:@0.559502:0.809922:0.586521:0.809922:0.586521:0.788113:0.559502:0.788113:0.000000:0.000000
15:@0.559502:0.848858:0.586521:0.848858:0.586521:0.827049:0.559502:0.827049:0.000000:0.000000
17:@0.559502:0.887794:0.586521:0.887794:0.586521:0.865985:0.559502:0.865985:0.000000:0.000000
+ 5:@0.486834:0.683978:0.521170:0.683978:0.521170:0.662169:0.486834:0.662169:0.000000:0.000000:0.000000
32:@0.736986:0.732050:0.764004:0.732050:0.764004:0.710241:0.736986:0.710241:0.000000:0.000000
21:@0.736986:0.770986:0.764004:0.770986:0.764004:0.749177:0.736986:0.749177:0.000000:0.000000
33:@0.736986:0.809922:0.764004:0.809922:0.764004:0.788113:0.736986:0.788113:0.000000:0.000000
45:@0.736986:0.848858:0.764004:0.848858:0.764004:0.827049:0.736986:0.827049:0.000000:0.000000
13:@0.736986:0.887794:0.764004:0.887794:0.764004:0.865985:0.736986:0.865985:0.000000:0.000000
36:@0.871136:0.732050:0.898154:0.732050:0.898154:0.710241:0.871136:0.710241:0.000000:0.000000
25:@0.871136:0.770986:0.898154:0.770986:0.898154:0.749177:0.871136:0.749177:0.000000:0.000000
37:@0.871136:0.809922:0.898154:0.809922:0.898154:0.788113:0.871136:0.788113:0.000000:0.000000
49:@0.871136:0.848858:0.898154:0.848858:0.898154:0.827049:0.871136:0.827049:0.000000:0.000000
17:@0.871136:0.887794:0.898154:0.887794:0.898154:0.865985:0.871136:0.865985:0.000000:0.000000
+ 4:@0.798467:0.683978:0.832803:0.683978:0.832803:0.662169:0.798467:0.662169:0.000000:0.000000:0.000000