393

Status: Needs Review

[numbers with addition and subtraction]
29
18
----
232
29
----
522
529
----------
52789

162
7
------
1134
81
---------
1215

162 1215
7½ 210
------- ------
1134 1425
81 600
------- -------
1215 1825
13 28
15 7
------- -------
[?] 196
[???]

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