Final answer:
The expression that can be used to check the quotient of 646 divided by 3 is 646 ÷ 3. The quotient is approximately 215.33 when rounded to two decimal places.
Step-by-step explanation:
The expression that can be used to check the quotient of 646 divided by 3 is 646 ÷ 3.
To simplify this expression, we divide 646 by 3: 646 ÷ 3 = 215.3333333333.
Therefore, the quotient of 646 divided by 3 is approximately 215.33 when rounded to two decimal places.