Study Guide for Semester Exam – 7th Grade Math

Study Guide for 1st Semester Exam – 7th Grade Math CRONNELLY. Directions: Be able to write equivalent expressions. – (- ½ ) + ( - 3 1/3) + ( + 4 1/8) Directions: Be able to take a ratio and write an equation. The ratio of teachers to students needs to be 1:30. If there were 120 students, how many teachers would be needed? ................
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