In [1]:

    

f = 123.456


    

In [2]:

    

print(round(f))


    

    




123

In [3]:

    

print(type(round(f)))


    

    




<class 'int'>

In [4]:

    

print(round(f, 1))


    

    




123.5

In [5]:

    

print(round(f, 2))


    

    




123.46

In [6]:

    

print(round(f, -1))


    

    




120.0

In [7]:

    

print(round(f, -2))


    

    




100.0

In [8]:

    

print(round(f, 0))


    

    




123.0

In [9]:

    

print(type(round(f, 0)))


    

    




<class 'float'>

In [10]:

    

i = 99518


    

In [11]:

    

print(round(i))


    

    




99518

In [12]:

    

print(round(i, 2))


    

    




99518

In [13]:

    

print(round(i, -1))


    

    




99520

In [14]:

    

print(round(i, -2))


    

    




99500

In [15]:

    

print(round(i, -3))


    

    




100000

In [16]:

    

print('0.4 =>', round(0.4))
print('0.5 =>', round(0.5))
print('0.6 =>', round(0.6))


    

    




0.4 => 0
0.5 => 0
0.6 => 1

In [17]:

    

print('4 =>', round(4, -1))
print('5 =>', round(5, -1))
print('6 =>', round(6, -1))


    

    




4 => 0
5 => 0
6 => 10

In [18]:

    

print('0.5 =>', round(0.5))
print('1.5 =>', round(1.5))
print('2.5 =>', round(2.5))
print('3.5 =>', round(3.5))
print('4.5 =>', round(4.5))


    

    




0.5 => 0
1.5 => 2
2.5 => 2
3.5 => 4
4.5 => 4

In [19]:

    

print('0.05 =>', round(0.05, 1))
print('0.15 =>', round(0.15, 1))
print('0.25 =>', round(0.25, 1))
print('0.35 =>', round(0.35, 1))
print('0.45 =>', round(0.45, 1))


    

    




0.05 => 0.1
0.15 => 0.1
0.25 => 0.2
0.35 => 0.3
0.45 => 0.5