CTET PAPER I 2019 · PYQ · Error Analysis / Subtraction · medium
A child subtracted two numbers as shown below: 83 – 27 = 64. Which one of the following statements gives idea about the child's learning of subtraction?
A.The child has misconceptions about place value in the process of subtraction.✓ Correct
B.The child does not know how to subtract.
C.The child knows the process of subtraction of two-digit numbers.
D.It is a mistake and it can be rectified by repeated practice.
Explanation
The child computed 83-27=64 instead of 56, likely by subtracting smaller digit from larger digit in each column (8-2=6 in tens, 7-3=4 in ones—ignoring place value and direction). This systematic error reveals a place value misconception in regrouping/borrowing, not a random mistake or complete ignorance. Diagnosing such errors is key to remediation—mere practice won't fix the underlying misconception.
💡 Practice unlimited CTET PAPER I PYQs + AI-tracked progress on each topic. Sign up free →
Want more CTET PAPER I practice?
Free daily 10-Q quiz · adaptive mocks · 4,000+ verified PYQs · AI doubt solver in Hindi + English