计算(能简算的要简算).(3618÷18-145)×20 6÷ 3 5 - 3 5 ÷6 9 2

2025-02-26 04:15:37
推荐回答(1个)
回答1:

(3618÷18-145)×20,
=(201-145)×20,
=56×20,
=1120;

3
5
-
3
5
÷6,
=6×
5
3
-
3
5
×
1
6

=10-
1
10

=9
9
10


9
20
÷[
1
2
×(
2
5
+
4
5
)],
=
9
20
÷[
1
2
×
6
5
],
=
9
20
÷
3
5

=
9
20
×
5
3

=
3
4


125×25×32,
=125×25×(4×8),
=(125×8)×(25×4),
=1000×100,
=100000;

3.5×9.8+3.5×0.2,
=3.5×(9.8+0.2),
=3.5×10,
=35;

5
12
×
1
13
-
1
4
÷13,
=
5
12
×
1
13
-
1
4
×
1
13

=(
5
12
-
1
4
)×
1
13

=
1
6
×
1
13

=
1
78