Which two signs should be interchanged to make the following equation correct?…
2023
Which two signs should be interchanged to make the following equation correct? 100 ÷ 20 + 67 − 64 × 16 = 2063
- A.
÷ and ×
- B.
+ and −
- C.
× and −
- D.
÷ and +
Attempted by 32 students.
Show answer & explanation
Correct answer: A
Answer: Swap ÷ and ×.
Explanation:
After swapping the division sign between 100 and 20 with the multiplication sign between 64 and 16, the expression becomes 100 × 20 + 67 − 64 ÷ 16.
Evaluate multiplication and division first (left to right): 100 × 20 = 2000 and 64 ÷ 16 = 4.
Then perform addition and subtraction: 2000 + 67 − 4 = 2063.
Therefore, swapping ÷ and × makes the equation correct.