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Base 10 Subtraction Demo

Base 10 Subtraction Demo
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2016-03-30 01:21
Coordinate GeometryGeometric Construction
This example demonstrates the process of base 10 subtraction visually, showing the decomposition and combination of digits. Core math concepts include decimal operations, digit decomposition, and place value principles. Construction highlights involve GeoGebra commands/objects like Textfield and Sequence for input, sequence generation, and text display. Suitable for elementary mathematics education to help students understand subtraction principles.

GeoGebra Commands & Parameters

  1. Textfield(base) → inputBox1
  2. Sequence(Sequence[(t + 10, o), o, 1, base], t, 1, tens_2) → list_4
  3. Sequence(Sequence[(t, o), o, 1, base], t, 1, tens) → list2
  4. Sequence((tens + 1, o), o, 1, ones) → list1
  5. Sequence((tens_2 + 11, o), o, 1, ones_2) → list3
  6. Sequence(Sequence[Sequence[(((h - 1) * 10) + t, o), o, -11, base - 12], t, 1, base], h, 1, hunds_{sum}) → list_{sum3}
  7. Sequence(Sequence[((hunds_{sum} * 10) + t, o), o, -11, base - 12], t, 1, tens_{sum}) → list_{sum2}
  8. Sequence(((hunds_{sum} * base) + tens_{sum} + 1 + ((10 - base) * hunds_{sum}), o), o, -11, ones_{sum} - 12) → list_{sum1}