Decimal Fractions
ICSE · Class 5 · Mathematics
All formulas from Decimal Fractions in ICSE Class 5 Mathematics. Key equations, constants, and identities for board exam preparation.
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Formulas
Place Value & Expanded Form
468.356 = 400 + 60 + 8 + 0.3 + 0.05 + 0.006
Operations with Decimals
Addition/Subtraction: Align decimal points
Multiplication: Total decimal places = sum of decimal places in both numbers
Division: Convert divisor to whole number by multiplying both by 10, 100, etc.
Rounding Off Decimals
Rounding to nearest whole: Check tenths digit
Rounding to 1 decimal place: Check hundredths digit
Rounding to 2 decimal places: Check thousandths digit
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