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Shawna and her classmates placed colored blocks on a scale during a science lab. The blue block weighed $0.4$ pounds and the purple block weighed $0.3$ pounds. How much more did the blue block weigh than the purple block?$\newline$Choices:$\newline$(A) $0.1$ pounds$\newline$(B) $0.3$ pounds$\newline$(C) $0.2$ pounds$\newline$(D) $0.5$ pounds