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Sheet # 23 Critical Thinking

Name: _____________________ Date_____________

Show and explain your work. Draw pictures or make tables to explain your answer.

A math contest consists of ten problems. Three points are given for each correct answer. One point is deducted for each incorrect answer. Estelle answers all the problems and scores 18 points. How many correct answers does she have?

Answers for sheet # 23

Correct answers: 7

Wrong answers: 3