答案
解:(1)-6-8-2+3.54-4.72+16.46-5.28
=(-6-8-2-4.72-5.28)+(3.54+16.46)
=-26+20
=-6;
(2)(-3
)-(-2
)-(-1
)-1.75
=(-3
)+2
+1
-1
=(-3
+1
)+(2
-1
)
=-2+1
=-1.
解:(1)-6-8-2+3.54-4.72+16.46-5.28
=(-6-8-2-4.72-5.28)+(3.54+16.46)
=-26+20
=-6;
(2)(-3
)-(-2
)-(-1
)-1.75
=(-3
)+2
+1
-1
=(-3
+1
)+(2
-1
)
=-2+1
=-1.