请数学老师,学霸解题,谢谢!
2个回答
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84-84÷[150÷(50-25)]
=84-84÷[150÷25]
=84-84÷6
=84-14
=70
32x25x125
=(4x25)x(8x125)
=100x1000
=100000
(18x17+8x18)x4
=18x(17+8)x4
=18x25x4
=18x(25x4)
=18x100
=1800
150x[(324+201)÷5-102]
=150x[525÷5-102]
=150x[105-102]
=150x3
=450
=84-84÷[150÷25]
=84-84÷6
=84-14
=70
32x25x125
=(4x25)x(8x125)
=100x1000
=100000
(18x17+8x18)x4
=18x(17+8)x4
=18x25x4
=18x(25x4)
=18x100
=1800
150x[(324+201)÷5-102]
=150x[525÷5-102]
=150x[105-102]
=150x3
=450
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