In Example B, the missing number is the weight of the package, which is to the left of the equals sign. This gives us a more difficult aquot;missing addendaquot; problem. In general, it is easier to understand a word problem whose translation leads to ananbsp;...

Title | : | Understanding the Structure of Elementary School Mathematics |

Author | : | Daniel M. Fendel |

Publisher | : | Allyn & Bacon - 1987-01-01 |

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