1. **State the problem:** Simplify the expression $5.3 \times 10^5 + 50 \times 10^3$.
2. **Rewrite powers of ten explicitly:**
$$5.3 \times 10^5 = 5.3 \times 100000 = 530000$$
$$50 \times 10^3 = 50 \times 1000 = 50000$$
3. **Add the two results:**
$$530000 + 50000 = 580000$$
4. **Express the sum in scientific notation:**
$$580000 = 5.8 \times 10^5$$
**Final answer:** $5.8 \times 10^5$
Simplify Scientific
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