Order of Operations Worksheets. There are 4 levels of difficultyThe exponents go up to 3. All the questions and answers contain positive whole numbers.Common Core Standards--6.EE.1 Write and evaluate numerical expressions involving whole-number exponents--6.EE.2c Perform arithmetic operations, including those involving whole number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations)***********************************************