题目内容
0.25×
+
×25%-
÷1
.
15 |
19 |
17 |
19 |
1 |
4 |
6 |
13 |
0.25×
+
×25%-
÷1
═
×
+
×
-
×
,
=(
+
-
)×
,
=1×
,
=
.
15 |
19 |
17 |
19 |
1 |
4 |
6 |
13 |
═
1 |
4 |
15 |
19 |
17 |
19 |
1 |
4 |
1 |
4 |
13 |
19 |
=(
15 |
19 |
17 |
19 |
13 |
19 |
1 |
4 |
=1×
1 |
4 |
=
1 |
4 |
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