《2025年通城学典计算能手五年级数学下册青岛版五四制》

一、解方程。
$60\%x + 25 = 40$ $(1 + 40\%)x = 35$ $60\%x + 25\%x = 255$
$x - 25\%x = 45$ $120\%x + 6 = 12$ $14\%x - 9.1 = 0.7$
$1.05x - 55\%x = 20$ $65\%x - 35\%x = 12$ $60\% + 4x = 27.6$
$18\%x + 15 = 24$ $\frac{2}{3}x + 75\%x = \frac{1}{6}$ $x - 35\% + 1.2 = 4.7$
$162.5\% - x = \frac{15}{16}$ $0.5 + 50\%x = 3$ $60x + 60×25\%x = 75$

答案： $x = 25$@@$x = 25$@@$x = 300$@@$x = 60$@@$x = 5$@@$x = 70$@@$x = 40$@@$x = 40$@@$x = \frac{27}{4}$@@$x = 50$@@$x = \frac{2}{17}$@@$x = 3.85$@@$x = \frac{11}{16}$@@$x = 5$@@$x = 1$