Numbers 81 to 90

• The Add '+' and Subtract '-' signs are missing from given problems, with numbers ranging from 81 to 90.The given number range pertains to questions, not the answers.
• Choose the appropriate signs for each problem.
• Write the signs in the given boxes.
• Confirm the numbers of correct answers by clicking the ‘Check’ button below.
• If your answers are right, you have done great.
• If any of your answer is wrong, do not worry. You can click on the box again, type your answer, and click the ‘Check’ button again.
• You can keep trying like this until you get all your answers correct.
• If you do not want to try again and just want to view the right answers, click the ‘Show Solution’ button.
• If you want to take the test once again, simply click the ‘Retry’ button.