Worksheets, in class lessons with direct instructions (answers are included in non-free version).
There are 49 questions of Algebra 1 level.
About 30 questions include Order of Operations.
About 20 questions include fractions: add, subtract, multiply, divide
About 10 questions simplifying fractions with variables and/or solving for a variable.
This lesson is equivalent to 3-5 days of lessons under regular schedule.