Simplify Using Appropriate properties : 2/3 (5/6-7/8) And Write The name of the property also.
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Step-by-step explanation:
Simplify using appropriate properties
2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11
=(2 + 3) + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11
= (5 + 4) + 5 + 6 + 7 + 8 + 9 + 10 + 11
= (9 + 5) + 6 + 7 + 8 + 9 + 10 + 11
= (14 + 6) + 7 + 8 + 9 + 10 + 11
= (20 + 7) + 8 + 9 + 10 + 11
= (27 + 8) + 9 + 10 + 11
= (35 + 9) + 10 + 11
= (44 + 10) + 11
= (54 + 11)
= 65
so the answer is 60
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