题目内容

脱式计算.(能简算的要简算)
①44.08-44.08÷5.8
1
4
+
3
7
+
4
7
÷4
③7.5×
2
3
+7.5÷
3
4
--
④[
8
15
-(
7
12
-
2
5
)]×
15
14
①44.08-44.08÷5.8,
=44.08-7.6,
=36.48;
1
4
+
3
7
+
4
7
÷4,
=
1
4
+
3
7
+
4
7
×
1
4

=
1
4
+
3
7
+
1
7

=
7
28
+
12
28
+
4
28

=
23
28

③7.5×
2
3
+7.5÷
3
4

=7.5×
2
3
+7.5×
4
3

=(
2
3
+
4
3
)×7.5,
=2×7.5,
=15;
④[
8
15
-(
7
12
-
2
5
)]×
15
14

=[
8
15
-(
35
60
-
24
60
)]×
15
14

=[
8
15
-
11
60
15
14

=
21
60
×
15
14

=
3
8
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