题目内容
4.5×4-414÷23 | 75×
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(
|
(
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|
|
(1)4.5×4-414÷23,
=18-18,
=0;
(2)75×
+25×
,
=(75+25)×
,
=100×
,
=60;
(3)(
-
+
)÷
,
=(
-
+
)×60,
=
×60-
×60+
×60,
=6-5+4,
=5;
(4)(
-
÷2)÷
,
=(
-
)×
,
=
×
-
×
,
=
-
,
=
;
(5)
×(
+
÷
),
=
×(
+
),
=
×
,
=
;
(6)
÷[
×(2-
)],
=
÷[
×
],
=
÷
,
=
.
=18-18,
=0;
(2)75×
3 |
5 |
3 |
5 |
=(75+25)×
3 |
5 |
=100×
3 |
5 |
=60;
(3)(
1 |
10 |
1 |
12 |
1 |
15 |
1 |
60 |
=(
1 |
10 |
1 |
12 |
1 |
15 |
=
1 |
10 |
1 |
12 |
1 |
15 |
=6-5+4,
=5;
(4)(
1 |
4 |
1 |
10 |
3 |
10 |
=(
1 |
4 |
1 |
20 |
10 |
3 |
=
1 |
4 |
10 |
3 |
1 |
20 |
10 |
3 |
=
5 |
6 |
1 |
3 |
=
1 |
2 |
(5)
4 |
15 |
3 |
8 |
6 |
5 |
8 |
5 |
=
4 |
15 |
3 |
8 |
3 |
4 |
=
4 |
15 |
9 |
8 |
=
3 |
10 |
(6)
8 |
25 |
4 |
9 |
7 |
5 |
=
8 |
25 |
4 |
9 |
3 |
5 |
=
8 |
25 |
4 |
15 |
=
6 |
5 |
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