navigate by keyword : 123 abc adding alphabet apple background black blackboard bletters blue board boardred brand calligraphy can chalk chalkboard clock colors com comma creative creatively darkness decimal digits document drawing easy first flu focus font green handwriting handwritten illustration impossible isolated lesson lessonschool letters math mathematics monochrome news notation number numbers photograph possible poster problem school season seasonflu sex sign signs sketch srawing subtraction symbol symbols task text various vritten white writing written www wwwcom wwwporn wwwwww yes additionexample

0.5 + 0.5 = 1 .Decimal numbers addition.Example from mathematics.

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