C1:
a)35,3+1,442+3,741
=35+1+4
=40
b)312,53-26,21542
=312-26
=286
c)5,032+11,3
=5+11
=16
e)2710,32-1518,0394
=2710-1518
=1192
d)8,04+2,2239
=8+2
=10
f)4546,0114-3819,23
=4546-3819
=727
C2:
a)35,3+1,442+3,741
=40,483
=40
b)312,53-26,21542
=286.31458
=286
c)5,032+11,3
=16.332
=16
e)2710,32-1518,0394
=1192.2806
=1192
d)8,04+2,2239
=10.2639
=10
f)4546,0114-3819,23
=726.7814
=727