The Cleanest Village
CBSE · Class 4 · Mathematics
All formulas from The Cleanest Village in CBSE Class 4 Mathematics. Key equations, constants, and identities for board exam preparation.
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Formulas
1. Money Addition and Subtraction
₹38 + ₹16 = ₹54
₹310 - ₹179 = ₹131
₹150 - ₹113 = ₹37
2. Word Problems on Addition
Unknown part = Total - Known part
3. Word Problems on Subtraction
Difference = Bigger number - Smaller number
83 - 46 = 37
527 - 264 = 263
639 - 531 = 108
4. Counting and Comparing Quantities
Total = boys + girls
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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