题目内容

灵活计算下面各题
(1)25×0.36×4
(2)36÷[(
5
6
-
1
3
)×4]
(3)
1
8
+
5
9
+
7
8
+
4
9

(4)18×
2
3
-3÷
3
2
(1)25×0.36×4,
=25×4×0.36,
=100×0.36,
=36;

(2)36÷[(
5
6
-
1
3
)×4],
=36÷[
1
2
×4],
=36÷2,
=18;
(3)
1
8
+
5
9
+
7
8
+
4
9

=(
1
8
+
7
8
)+(
5
9
+
4
9
),
=1+1,
=2;

(4)18×
2
3
-3÷
3
2

=12-3×
2
3

=12-2,
=10.
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