Find the total weight in grams of three cards whose individual weights are 196mg, 8dg and 75cg?

Question

Find the total weight in grams of three cards whose individual weights are 196mg, 8dg and 75cg?

Answer 1

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Answer 2

First step is to get all three expressions into the same units.  Pick the smallest unit: mg

The first one is already in mg (196 mg)

The second one needs to be converted to mg. A dg is a hundred times bigger than a mg, so multiply by 100: (800 mg)

The third one also needs to be converted to mg.  A cg is ten times bigger than a mg, so multiply by 10: (750mg)

Then you can add them all together: 196mg + 800mg + 750mg=1746mg.

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