Tính 15% + 75% + 56%

Tính :
a) 15% + 75% + 56%
b) 23% - 18%
c) 34% x 8
d) 25% : 5
e) 7,34% + 97,12% + 34,4%
f) 123% - 23,6%
g) 45,34% x 6
h) 23% : 4