Go to any question bank Create a new 'Calculated' question Set the following fields: question name: Test MDL-48042 question text: Test MDL-48042 answer 1 formula = ( {x}*0.001)*{y} grade: 100% answer display: 3 significant figures * click save changes * click next page * Set the following fields: wild card {x} : 0.240 range min: 0.15 range max: 0.45 decimal places: 3 distribution: uniform wild card {y} : 84.2 range min: 20 range max: 100 decimal places: 1 distribution: uniform Tolerance ± : 0 Correct answer shows*: 3 format: significant figures click update the answers tolerance parameters Expected: ERROR Correct answer : 0.020 outside limits of true value Min: 0.020208 — Max: 0.020208 Modify * Correct answer shows* to 7 Expected: Correct answer : 0.020208 inside limits of true value Min: 0.020208 — Max: 0.020208 This is a copy of the test done when testing MDL-47224 although here the expected result is different. TO complete the test, create 100 set(s) of wild card(s) values. There should be no error ( I tested 10 times). Preview using the preview button. Use Fill in correct response and submit. You should obtain a 100% grade like the Test_ MDL-48042 .jpg Notice that setting Tolerance to 0 is tricky as it implies that the 2 values are really equivalent. In this specific test the number 7 was found by trial and error and its related to the fact that the answer equation and the range chosen for the variables does not give a response with a greater number of decimals.