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Decimals
· Formula🧮 Formula Reference Sheet
Place value: 0.527 = 5/10 + 2/100 + 7/1000 Fraction → decimal: divide top by bottom Multiplying: 0.4 × 0.3 = 0.12 (count decimal places) Dividing: shift decimal point in both
⚡ Example per formula
Place value: 0.527 = 5/10 + 2/100 + 7/1000
↳0.527 = 5/10 + 2/100 + 7/1000
Fraction → decimal: divide top by bottom
↳1/4 = 0.25; 1/3 = 0.333…
Multiplying: 0.4 × 0.3 = 0.12 (count decimal places)
↳0.4 × 0.3 = 0.12 (2 decimal places)
Dividing: shift decimal point in both
↳6.4 ÷ 0.8 = 64 ÷ 8 = 8
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