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slava [35]
3 years ago
6

In the left column: how was the numerical part of the answer found (addition, subtraction )

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0
You can find the numerical part of the answer because it is the same on the right side.

For example:
 ¹      <<==== Regrouped
  89
+
  67
---------
146   <<=== I had to press space so I could position it.

So that also happens in subtraction, the left side can be found by doing the same steps in the right column.
For example:

67
-                    <<=== this time there was no regrouping
12
-------
55




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