volume_mute
Estimate: Both Three-Digit Numbers
publish date: 2026/05/10 01:29:58.368199 UTC
volume_mute
Use front-end rounding to estimate: \(445 \times 789\)
Correct Answer
320,000
Explanation
- \(445 \to 400\) (nearest hundred, 4 < 5 → round down)
- \(789 \to 800\) (nearest hundred, 8 ≥ 5 → round up)
Estimate: \(400 \times 800 = 320{,}000\).
Reference
go-math-science.com