8.65-3.7+1.35-6.3

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8.65-3.7+1.35-6.38.65-3.7+1.35-6.38.65-3.7+1.35-6.38.65-3.7+1.35-6.3=(8.65+1.35)-(3.7+6.3)=10-10=08.

8.65-3.7+1.35-6.3
8.65-3.7+1.35-6.3

8.65-3.7+1.35-6.3
8.65-3.7+1.35-6.3
=(8.65+1.35)-(3.7+6.3)
=10-10
=0

8.65-3.7+1.35-6.3
=8.65+1.35-(3.7+6.3)
=10-10
=0