Alejandro has two marbles. One weighs 0.56 grams, and the other weighs 0.825 grams. How much more does the second marble weigh?

Subtract the first marble’s weight from the second marble’s weight: 0.825 − 0.560 = 0.265 grams. The second marble weighs 0.265 grams more, so the correct choice is A) 0.265 grams.

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