(1)
÷
×
(2)4×0.8×2.5×1.25(3)
-
-
+
(4)
×[
-(
-
)](1)
÷
×
=
×
×
=(
×
)×
=
(2)4×0.8×2.5×1.25
=4×2.5×(0.8×1.25) =10
(3)
-
-
+
=
+
)+
=
(4)
×[
-(
-
)]=
×[
-
]=
×
=
编辑:chaxungu时间:2026-04-27 14:16:51分类:小学数学题库
÷
×
(2)4×0.8×2.5×1.25
-
-
+
(4)
×[
-(
-
)](1)
÷
×
×
×
×
)×
=
-
-
+
+
)+
=
×[
-(
-
)]
×[
-
]
×
=