99*27-33*51+66*35

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99*27-33*51+66*35
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99*27-33*51+66*35
99*27-33*51+66*35

99*27-33*51+66*35
99*27-33*51+66*35
=33*3*27-33*51+33*2*35
=33*81-33*51+33*70
=33*(81-51+70)
=33*100
=3300

(100-1)*27-33*(50+1)+(70-4)*35

=33*3*27-33*51+33*2*35
=33*(81-51+30)
=33*60
=1960