How to solve:
Problem:
2
7
+
2
9
Add the numbers in the right column:
7
+
9
=
16
.
Enter the answer, carrying the 1:
1
2
7
+
2
9
6
Add the numbers in the left column:
1
2
7
+
2
9
5
6
Here's one to try:
(Starts timer)
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