This 4th Grade Reference Sheet includes:The formulas for Perimeter and Area of rectanglesKey words to help identify which mathematical operation is being usedThe different types of lines: line, line segment, ray, parallel lines, perpendicular lines, and intersecting linesCommon benchmark fractions to help with equivalent and comparing fractionsA place value chart up to the millions and including two decimal placesThis reference sheet is great for students to use daily in class so they become fam