[{"id":26163,"skill_id":166,"original_question_id":null,"difficulty_id":2,"is_diagnostic":0,"user_id":2,"question":"$$16 + \\dfrac{?}{10} = 17.8$$ What is the missing number in the box?","explanation":"17.8 − 16 = 1.8, so \\(\\dfrac{?}{10}=1.8\\). Then ? = 1.8 × 10 = 18. Answer: 18.","question_image":null,"answer0":"0.8","answer0_image":null,"answer1":"1.8","answer1_image":null,"answer2":"18","answer2_image":null,"answer3":"180","answer3_image":null,"correct_answer":2,"status_id":6,"source":"St Nicholas 2023 P5 End-of-Year Exam Q3","type_id":1,"calculator":null,"created_at":"2026-05-29 13:14:17","qa_status":"ai_generated","qa_reviewer_id":null,"last_qa_editor_id":null,"qa_notes":null,"qa_reviewed_at":null,"published_at":null,"updated_at":"2026-05-29 13:14:17","gamecodes_id":null,"reviewed_by":null,"reviewed_at":null}]