IXL | Commas with coordinate adjectives | 10th grade language arts

Insert one comma to separate the coordinate adjectives.

Boomerangs—flat angular pieces of wood—can be traced back to many ancient civilizations. King Tutankhamun, who ruled Egypt from 1332 to 1323 BCE, had a considerable boomerang collection.

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question

Insert one comma to separate the coordinate adjectives.

Although many corporations benefit considerably from the stretchy multifunctional invention known as the rubber band, the U.S. Postal Service is the largest consumer worldwide, annually purchasing millions of pounds of this useful elastic item.

key idea

Coordinate adjectives are adjectives that describe the same noun equally. They should be separated with commas.

Answer these two questions to check for coordinate adjectives:

Does the text still sound okay when the adjective order is changed?

Does the text still sound okay when and is inserted?

If the answer to both questions is yes, then the adjectives are coordinate and should be separated with commas.

solution

Look for adjectives that are next to each other and then test whether they are coordinate adjectives.

Stretchy and multifunctional are coordinate adjectives, so they should be separated with a comma. You can tell because the text still sounds okay when the adjective order is changed as well as when and is inserted.

green checkmark, multifunctional, stretchy invention
green checkmark, stretchy and multifunctional invention

Useful and elastic are not coordinate adjectives, so they should not be separated with a comma. You can tell because the text does not sound right at all when the adjective order is changed or when and is inserted.

red X symbol, elastic useful item
red X symbol, useful and elastic item

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