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f) 13.75+13.26-13

 =975+338-13

=1300

g)41.86+59.68-41.36-59.18

=3526+4012-1476-1062

=5000

h)8.41.3+12.66.2-4.6.7

=984+1584-168

=2400

i)160:18+200:28

=(160+200):18

=360:18

=20

j)80:15+80:5-50:15

=80:5-(80-50):15

=80:5-30:15

=20-2

=18