201 × 199 = ____?
- 40000
- 39999
- 39801
- None of these
Explanation
Use identity: (a + 1)(a - 1) = a² - 1
Here 201 × 199 = (200 + 1)(200 - 1) = 200² - 1²
= 40000 - 1
= 39999
Last verified on 23-06-2026
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