You could find the numbers on either side of 5 that are perfect squares {4 & 9} then find their square roots and interpolate. So for y = f(x) = sqrt(x):
x | y
4 | 2
9 | 3
So you could interpolate using Δy/Δx = (3-2)/(9-4) = 1/5. So Δx between 4 and 5 is 1, so Δy = Δx * (Δy/Δx) = 1 * (1/5) = 1/5. Then add Δy to y,
which is 1/5 + 2 = 2 1/5. So it is closest to 2. Of course you could just look at it and see that 5 is closer to 4 than 9, so infer that 2 is closer to the square root of 5, than 3.
round to the nearest whole # after estimating the square root
The nearest whole number to the square root of 274 is seventeen (17).
11 is the square root
It is 5.8 to the nearest tenth
7
round to the nearest whole # after estimating the square root
The square root of 55 to the nearest whole number is 7.
-11
The nearest whole number to the square root of 274 is seventeen (17).
11 is the square root
It is 5.8 to the nearest tenth
7
4.8
Square root of 59 is 7.681145748 Nearest whole number would be 8
sqrt(39) = ±6, to the nearest whole number.
12 (122 = 144, the closest square root)
The square root of 660 is approximately 25.69046515733026, or about 26 when rounded to the nearest whole.