For a science assignment, Mary had to compare the weight of two objects - a paper clip and a plastic block. The paper clip weighed 0.92 grams and the plastic block weighed 1.7 grams. How much more does the block weigh than the paper weight?

To find out how much more the plastic block weighs than the paper clip, you subtract the weight of the paper clip from the weight of the plastic block.

Weight of the plastic block = 1.7 grams
Weight of the paper clip = 0.92 grams

Difference in weight = Weight of plastic block - Weight of paper clip
Difference in weight = 1.7 grams - 0.92 grams
Difference in weight = 0.78 grams

So, the plastic block weighs 0.78 grams more than the paper clip.