A QR code, short for quick-response code, [1] is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of the Japanese company Denso Wave.
What's the Value? Coin QR Cards (3 differentiated sets-- values up to 25 cents, 50 cents, and $1. Students must determine the value of a card, write it down ...
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Here you will find Loyalty QR codes that you can scan to collect SATA coins. For SATA RPS multi-purpose cups, you will receive 40 to 100 SATA coins per box.