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  • Price: free ($0.00) In Apple Store
  • Category: Education
  • Updated: 2011-01-12
  • Current Version: 1.0
  • 1.0
  • Size: 0.30 MB
  • Language: English
  • Seller: Susan Chen
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.0 or later.
  • © 2011 SS Chen
  •  Add to Favorite apps



Math is used in our daily life. Arithmetic operations: +, -, *, and / are the cornerstones of math. Normally, we learn addition first, before the other operations.VHSum reverses the thinking of addition. For example, given the number 26, we would….. Read more

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VHSum iPhone Screenshot 1
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VHSum iPhone Screenshot 5

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