To determine which numbers are less than 1,000, we need to calculate each expression:
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8 × 10² = 8 × 100 = 800 (less than 1,000)
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9 × 10³ = 9 × 1,000 = 9,000 (not less than 1,000)
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5 × 10¹ = 5 × 10 = 50 (less than 1,000)
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3 × 10⁴ = 3 × 10,000 = 30,000 (not less than 1,000)
So, the numbers less than 1,000 are:
- 8 × 10²
- 5 × 10¹