Răspuns :
a) 4*(0,4+6,4:4)-2
=4*(0,4+1,6)-2
=4*2-2
=8-2
=6
b) 4*((0,4+6,4):4)-2
=4*(6,8:4)-2
=4*1,7-2
=6,8-2
=4,8
c) (4*0,4+6,4):4-2
=(1,6+6,4):4-2
=8:4-2
=2-2
=0
=4*(0,4+1,6)-2
=4*2-2
=8-2
=6
b) 4*((0,4+6,4):4)-2
=4*(6,8:4)-2
=4*1,7-2
=6,8-2
=4,8
c) (4*0,4+6,4):4-2
=(1,6+6,4):4-2
=8:4-2
=2-2
=0