| 000 | 00494 a2200145 4500 | ||
|---|---|---|---|
| 020 | _a9786075147741 (pbk.) | ||
| 020 | _a6075147748 (pbk.) | ||
| 041 | _aspa | ||
| 100 | _aMexico. Secretara̕ de Educacin̤ Pb͠lica. | ||
| 245 | _aDesafo̕s matemt̀icas. Segundo grado. | ||
| 260 | _aMx̌ico, D.F. : Secretara̕ de Educacin̤ Pb͠lica, Mx̌ico, D.F. : Secretara̕ de Educacin̤ Pb͠lica, 2016. 2014. c2014 | ||
| 300 |
_a197 pages : color illustrations ; _c27 cm |
||
| 942 | _cBK | ||
| 952 | _71 | ||
| 999 |
_c20778 _d20778 |
||