Quick estimateझटपट अनुमान झटपट अनुमानQuick estimate
Pick the nearest value for a messy expression: round smartly, never calculate exactly.
Trick card
Round to friendly numbers, in opposite directions
Round each number to something easy (49.8% → 50%, 1,198 → 1,200).
Round one number up and the next one down so the errors cancel, then pick the closest option.
24.9% of 801.4 ÷ 3.97 ≈ 25% of 800 ÷ 4 = 50
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A right answer moves on by itself. Press Enter on an empty box to skip.
The fast way, by levelहर लेवल पर तेज़ तरीका
- Percent of a number24.78% of 397.8 = 99≈ 25% of 400 = 100
- Percent, then divide50.17% of 480.84 ÷ 4.96 = 49≈ 50% of 480 ÷ 5 = 48
- Product of three messy numbers19.8 × 40.21 × 2.04 = 1,624≈ 20 × 40 × 2 = 1,600