直接寫計算結(jié)果
12.5×
1
7
×0.56
=
9
5
7
-3
4
9
+2
4
9
-8
3
7
=
2
5
7
-(
3
5
-
2
7
)
=
7800×8÷36×108÷26=
1
6
+
1
12
+
1
20
+
1
30
=
1
1
9
+2
1
90
+3
1
900
=
(1)12.5×
1
7
×0.56
=1;
(2)9
5
7
-3
4
9
+2
4
9
-8
3
7
,
=(9
5
7
-8
3
7
)-(3
4
9
-2
4
9
),
=1
2
7
-1,
=
2
7
;
(3)2
5
7
-(
3
5
-
2
7
)

=2
5
7
-
3
5
+
2
7
,
=27+
2
7
-
3
5

=3-
3
5
,
=2
2
5
;
(4)7800×8÷36×108÷26,
=7800×8×
1
36
×108×
1
26
,
=7200;
(5)
1
6
+
1
12
+
1
20
+
1
30
,
=
1
2
-
1
3
+
1
3
-
1
4
+
1
4
-
1
5
+
1
5
-
1
6
,
=
1
2
-
1
6

=
1
3
;
(6)1
1
9
+2
1
90
+3
1
900
,
=(1+2+3)+(
1
9
+
1
90
+
1
900
),
=6+
37
300
,
=6
37
300
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