答案
解:(1)-42-35+37=-77+37=-40;
(2)(-0.125)×(-20)×(-8)=(-0.125)×(-8)×(-20)=-20;
(3))
(-6)2×(-)-23=36×
-
×36-8=24-18-8=-2;
(4)
-30×(-+)=-30×
-
×(-30)
+×(-30)=-15+20-24=-19;
(5)-99
×72=(-100+
)×72=-100×72
+×72=-7200+1=-7199;
(6)
-22+-(-)=-4-3+2=-5;
解:(1)-42-35+37=-77+37=-40;
(2)(-0.125)×(-20)×(-8)=(-0.125)×(-8)×(-20)=-20;
(3))
(-6)2×(-)-23=36×
-
×36-8=24-18-8=-2;
(4)
-30×(-+)=-30×
-
×(-30)
+×(-30)=-15+20-24=-19;
(5)-99
×72=(-100+
)×72=-100×72
+×72=-7200+1=-7199;
(6)
-22+-(-)=-4-3+2=-5;