(0.7-3/10-4/5+0.03)*(-100)怎么算?
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![(0.7-3/10-4/5+0.03)*(-100)怎么算?](/uploads/image/z/6884993-65-3.jpg?t=%280.7-3%2F10-4%2F5%2B0.03%29%2A%28-100%29%E6%80%8E%E4%B9%88%E7%AE%97%3F)
(0.7-3/10-4/5+0.03)*(-100)怎么算?
(0.7-3/10-4/5+0.03)*(-100)怎么算?
(0.7-3/10-4/5+0.03)*(-100)怎么算?
(0.7-3/10-4/5+0.03)*(-100)
=-70+30+80-3
=37
=(0.7-0.3-0.75+0.03)*(-100)
=(0.4-0.75+0.03)*(-100)
=(-0.35+0.03)*(-100)
=-0.32*(-100)
=32