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MP AMC Book 1

Assessing Math Concepts • Book 6
Hiding Assessment

by Kathy Richardson

Topic: Decomposing Numbers

Goal: To find out which number combinations a child knows by determining if he/she can tell the missing part of a number without having to figure it out.

Critical Learning Phases:

  • Figures out missing parts of numbers when unknown
  • Knows missing parts without needing to figure them out
  • Uses addition to solve subtraction