答案
解:(1)
3-1+5+3=3
+5-1+3=9+2=11;
(2)(-3)
2+(-2)
3×(-
)÷(-
)=9+(-8)×(-
)×(-2)=9-4=5;
(3)(-1)
5×[4
÷(-4)+(-
)×(-0.4)]÷(-
)=-1×(-
×+×)×(-3)=-(-
)×(-3)=-
;
(4)-1
4-(1-0.5)×
×[2-(-3)
2]=-1-
××(-7)=-1+
=;
(5)(-
+
)×24-3.95×6-1.45×6=-16+20-6×(3.95+1.45)=4-6×5.4=4-32.4=-28.4;
(6)26-(-5)×(-7)=26-35=-9.
解:(1)
3-1+5+3=3
+5-1+3=9+2=11;
(2)(-3)
2+(-2)
3×(-
)÷(-
)=9+(-8)×(-
)×(-2)=9-4=5;
(3)(-1)
5×[4
÷(-4)+(-
)×(-0.4)]÷(-
)=-1×(-
×+×)×(-3)=-(-
)×(-3)=-
;
(4)-1
4-(1-0.5)×
×[2-(-3)
2]=-1-
××(-7)=-1+
=;
(5)(-
+
)×24-3.95×6-1.45×6=-16+20-6×(3.95+1.45)=4-6×5.4=4-32.4=-28.4;
(6)26-(-5)×(-7)=26-35=-9.