Evaluate:
−165×208-\dfrac{16}{5} \times \dfrac{20}{8}−516×820
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−165×208=−16×205×8=−32040=−8-\dfrac{16}{5} \times \dfrac{20}{8}\\[1em] =-\dfrac{16 \times 20}{5 \times 8}\\[1em] =-\dfrac{320}{40}\\[1em] =-8−516×820=−5×816×20=−40320=−8
Hence, −165×208=−8-\dfrac{16}{5} \times \dfrac{20}{8} = -8−516×820=−8
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−12572×9−5\dfrac{-125}{72} \times \dfrac{9}{-5}72−125×−59
−119×−51−44\dfrac{-11}{9} \times \dfrac{-51}{-44}9−11×−44−51
Multiply
56\dfrac{5}{6}65 and 89\dfrac{8}{9}98
Multiply:
27\dfrac{2}{7}72 and −149\dfrac{-14}{9}9−14
