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| 005 | 20210219153212.0 | ||
| 008 | 991125n 000 0 eng u | ||
| 035 | _aUPN01000083910 | ||
| 100 | _aFuson, Karen C. | ||
| 222 | _aJOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION | ||
| 245 | _aIssues in place-value and multidigit addition and subtraction learning and teaching | ||
| 300 | _a273-280 | ||
| 362 | _a1990 21, no. 4 | ||
| 653 | 0 | _aADICION | |
| 653 | 0 | _aCURRICULUM MATEMATICO | |
| 653 | 0 | _aESCUELA SECUNDARIA (MATEMATICA) | |
| 653 | 0 | _aINFLUENCIAS CULTURALES | |
| 653 | 0 | _aRESTA | |
| 904 |
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| 905 | _aArticulo | ||
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