expand the following number using exponents : 10257.45
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10257.45
= 1 × 10000 + 0 × 1000 + 2 × 100 + 5 × 10 + 7 × 1 + 4 + 5
10 100
= 1 × 10⁴ + 0 × 10³ + 2 × 10² + 5 × 10¹ + 7 × 10⁰ + 4 × 10-¹ + 5 × 10-²
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