(1)43-(
+24÷22 5
),2 3
=43-(
+24÷2 5
)磨模,8 3
=43-(
+24×2 5
),3 8
=43-
-9,2 5
=43-9-
,2 5
=34-
,2 5
=33
;3 5
(2)(
×0.87+0.23×3 10
)÷3%,3 10
=
×(0.87+0.23)÷3 10
,3 100
=
×1.1×3 10
,100 3
=
×3 10
×1.1,100 3
=10×1.1,
=11;
(3)32×
+30 31
,1 31
=(31+1)×
+30 31
,1 31
=31×
+30 31
+30 31
,1 31
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)瞎简缓-(1.81+0.19),咐物
=3-2,
=1.