issb mathematics MCQ #241

issb mathematics MCQ #241

1. Question 1

   Q1. Solve: x - 7 = 15.

   • A) 20
   • B) 22
   • C) 23
   • D) 21

   Answer: 22

   Explanation: Add 7 to both sides to get x = 22. Work each step carefully; ISSB math rewards accuracy under time pressure.