Directions: With this type of questions you are given a number equation (number sentence) with a number missing. Both sides of the equation need to have the same value. You are required to find the missing number that will balance the equation. \[\text{9 }\!\!\times\!\!\text{ 9 + 9 = 10 }\!\!\times\!\!\text{ 10 - }\!\![\!\!\text{ ? }\!\!]\!\!\text{ }\]

• A. 8
• B. 12
• C. 10
• D. 9