Question

22500÷7×10² ????? answer is 3.214×10⁵​

Answer 1

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22500÷7×10²

This can be written as

$\frac{22500}{7} \times {10}^{2} \\ = 3214.28 \times {10}^{2} \\ = (3.21428 \times {10}^{3} ) \times {10}^{2} \\ = 3.21428 \times {10}^{3 + 2} \\ = 3.21428 \times {10}^{5} \\ ≈3.214 \times {10}^{5}$

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