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Become adept at measurement by examining the formulas for calculating area, perimeter and surface area for different shapes. Our resource provides warm-up and timed drill activities to practice procedural proficiency skills. Convert standard and metric measurements. Calculate the area and perimeter of shapes. Find the perimeter of triangles with a ratio of 2 to 1. Determine the surface area of cubes. Convert lengths into two new measurements. Find the area and circumference of circles. Calculate the average times in minutes and seconds of a 4 mile (6.5 km) race. The drill sheets provide a leveled approach to learning, starting with grade 6 and increasing in difficulty to grade 8. Aligned to your State Standards and meeting the concepts addressed by the NCTM standards, reproducible drill sheets, review and answer key are included.