0.21 Rounded to the Nearest Whole Number

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What is 0.21 rounded to the nearest whole number?

Answer

0.21 rounded to the nearest whole number is
0

Nearest whole number — no decimal places. The tenths digit decides: 5⁠–⁠9 round up, 0⁠–⁠4 keep; the decimals are dropped.

0.21 is closer to 0 than to 1, so it rounds to 0.

0.21

0 ones place 2 The tenths digit decides

0.21
0closer 0.5midpoint 1

2 < 5 → rounds to 0

0.21 rounded to every place
PlaceRounded
to the nearest thousandth0.210
to the nearest hundredth0.21
to the nearest tenth0.2
to the nearest whole number0

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Numbers rounded to the nearest whole number

NumberRounded
0.0010
0.050
0.210
0.250
0.280
0.40
0.409110
0.430
0.490
0.51
0.641
0.7411
0.81
0.91
1.071
1.0861
1.21
1.361
1.471
1.52
1.62
1.6022
1.652
1.692
1.72
2.2832
2.32
2.362
2.53
2.783

FAQ

What is 0.21 rounded to the nearest whole number?

0.21 rounded to the nearest whole number is 0

Is 0.21 closer to 0 or 1?

0.21 is 0.21 from 0 and 0.79 from 1, so it is closer to 0 — that is 0.21 rounded to the nearest whole number.

Does rounding to the nearest whole number keep any decimals?

No: the answer is a whole number, the fraction is dropped after the tenths digit decides — 0.21 → 0.

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