IGNOU LMT 1 2026 - Why do children have difficulties with the algorithms for ad

Question

Why do children have difficulties with the algorithms for addition and subtraction of decimal numbers? Describe in detail how you would help class 5 children develop the subtraction algorithm. (To specify, consider 3.7 – 1.82.)

09 Jan 2026

Answer :

Word Count : 261

Children often face difficulties with addition and subtraction of decimal numbers because they need to coordinate multiple concepts at once: place value, alignment of decimal points, carrying and borrowing across decimal places, and understanding the meaning of decimals as parts of a whole. Many students treat decimals like whole numbers, ignoring the need to line up tenths, hundredths, and thousandths correctly. In subtraction, the challenge is compounded when borrowing is required across decimal places, which can confuse students

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