Numbers - 20, 30, 40, 50, etc. Type the words in the box and then check the spelling by pressing the Get answer! button. Check the spelling carefully. a: 20 b: 30 c: 40 d: 50 e: 60 f: 70 g: 80 h: 90 i: 100 j: 1000 Click here to do another exercise.Click here to go to the Back to Basics Lessons.
