Question

Manny scores 12 marks in an exam. Bob scores 4 fewer marks than him. Which addition fact can be used to find out Bob's score? What is his score?

• A. 4 + 8 = 12, Bob scores 8 marks
• B. 4 – 4 = 8, Bob scores 8 marks
• C. 12 – 8 = 4, Bob scores 4 marks
• D. 12 – 4 = 8, Bob scores 8 marks

Answer 1

The correct option is A 4 + 8 = 12, Bob scores 8 marks

$\text{Detailed step-by-step solution:}$
Number of marks scored by Manny in the exam = 12
Number of marks scored by Bob = 4 fewer than Manny = 12 – 4
We know,
4 + 8 = 12
So using this addition fact, we can say 12 – 4 = 8.


Therefore, Bob scores 8 marks in the exam.