Answer:
66.699
Explanation:
74.039
- 7.340
-----------
9 - 0 = 9
13 - 4 = 9
the ten becomes a 9 because you borrow 1
9 - 3 = 6
13 - 7 = 6
you borrowed from the 4 before, so it is 13, not 14
since you borrowed from the 7, it becomes a 6 now.
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