alleryStart learning →Which ending-5 shortcut expression gives 85²?
A100(8 × 8) + 25
B100(8 × 9) + 25
C100(8 × 9) + 5
D100(8 × 8) + 5
Answer & Solution
Correct answer: B. 100(8 × 9) + 25
The tens digit 8 is multiplied by its successor 9, then the final 25 is added after shifting two places.
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