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\[25+21\]
+
−
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ln
>
<
×
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log
≥
≤
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"(x+1)/2+4=7"
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25+21
25+21=
25+21
Available Methods
Algorithm
Partial Sum
Decomposition
1
Use the algorithm method.
2
5
+
2
1
4
6
2
Therefore,
25
+
21
=
46
25+21=46
2
5
+
2
1
=
4
6
.
46
46
4
6
Done
46
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