No. It is about 95.26125 mL too small (568.26125 − 473).
C. Create and defend
Answers vary. The quantities and unit relationship must produce 2½ gallons.
Sam moved from a smaller unit to a larger unit, so the number should shrink. 8 ÷ 4 = 2 gallons.
Answers vary. A rough container comparison may use an estimate; a technical or regulated calculation should retain the verified factor.
Teacher and parent notes
Use the errors as evidence
Score the equation and unit reasoning separately from arithmetic so misconceptions are visible.
Ask students to estimate first. An impossible-size result often reveals the wrong operation.
The final open response should distinguish convenience rounding from work where accuracy matters.
Pair this worksheet with the linked lesson before treating it as an assessment. A learner who can explain why the count changes is building a more durable model than one who only recalls a number.