999✖️66➗54➗37
=(1000-1)x66/(54x37)
【用2约分】
=(1000-1)x33/(27x37)
=(33000-33) /(27x37)
=32967 /(27x37)
【用9约分】
=3663/(3x37)
【用3约分】
=1221/37
【用37约分】
=33
999✖️66➗54➗37
=9x111x66÷(6x9)÷37
=(9÷9)x(111÷37)x(66÷6)
=1x3x11
=33
999×66÷54÷37
=(999÷37)×(66÷54)
=27×11/9
=33
=37×27×66÷54÷37
=37÷37×54×33÷54
=1×1×33
=33
999✖️66➗54➗37=999x66➗(9x6)➗37
=(999➗9)x(66➗6)➗37
=(111➗37)x11
=3x11
=33