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Hide Zero Cards - Input

Hide Zero Cards - Input
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2020-12-02 09:22
Sequence
This example demonstrates how to input numbers and hide zeros to showcase place value concepts. It involves core math concepts like natural numbers, addition, and place value. Constructed using GeoGebra commands and objects such as Length, Textfield, TextToUnicode, Sequence, Element, If, with elements like numero, digits, inputBox1, list1, list2. Suitable for lower elementary mathematics education to help students understand digits and place value.

GeoGebra Commands & Parameters

  1. Length(numero) → digits
  2. Textfield(numero) → inputBox1
  3. TextToUnicode(numero) → list1
  4. Sequence(Element[list1, i] - 48, i, 1, digits) → list2
  5. Element(list2, 1) → a
  6. If(digits ≟ 5, Element[list2, 3], If[digits ≟ 4, Element[list2, 2], If[digits ≟ 3, Element[list2, 1], If[digits < 3, 0, 0]]]) → hun
  7. If(digits ≟ 5, Element[list2, 2], If[digits ≟ 4, Element[list2, 1], If[digits < 4, 0, 0]]) → thous
  8. If(digits ≟ 5, Element[list2, 1], If[digits < 5, 0, 0]) → tenthous
  9. If(digits ≟ 5, Element[list2, 4], If[digits ≟ 4, Element[list2, 3], If[digits ≟ 3, Element[list2, 2], If[digits ≟ 2, Element[list2, 1], If[digits < 2, 0, 0]]]]) → ten
  10. If(digits ≟ 5, Element[list2, 5], If[digits ≟ 4, Element[list2, 4], If[digits ≟ 3, Element[list2, 3], If[digits ≟ 2, Element[list2, 2], If[digits < 2, Element[list2, 1], 0]]]]) → one

AI Drawing Prompt Reference

Create an educational visual for teaching place value. In the center, place an input box where a natural number can be entered. After input, split the number into individual digit cards, arranged from right to left as ones, tens, hundreds, thousands, and ten-thousands. Each card shows its digit; if a place is absent (e.g., number has fewer digits), that card appears blank or hidden. Below the cards, label each place value name to clarify the number's composition. Keep the layout simple and suitable for early elementary math.
The prompt above was compiled from the original drawing commands and is for reference only.