Using special products 69 ×69
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Answered by
1
69 into 69 is equal to 4761
aindrilakapat69:
explanation needed
Answered by
1
= (70 - 1 )*(70 - 1)
= 70*70 - 2*70*1 + 1
= 4900 - 148 + 1
= 4900 - 147
= 4753
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