Daljeet has solved some questions and written down their answers. What do you think? Are they correct? Verify the answers. Correct it if you find them wrong. 57 - 78 = 21
False. This subtraction is not possible in the usual way because 57 is less than 78. We cannot subtract a larger number from a smaller number in standard arithmetic. The problem appears to have an error.
Explanation
In standard subtraction, we cannot subtract 78 from 57 because 57 < 78. The answer 21 is incorrect. If this were meant to be 78 - 57, the answer would be 21. But as written (57 - 78), this is not a valid subtraction problem for Class 2 level.
Solution Steps
Step 1: Check if subtraction is possible: 57 < 78
Step 2: Since 57 is less than 78, we cannot subtract 78 from 57
Step 3: The problem may have a typo
Step 4: If it were 78 - 57, then answer would be 21