解方程或比例:x﹣x﹣=1; =0.12:1.5.
(桐庐县)解方程.①0.5x=3.5②﹣0.1x=0.05③0.36:8=x:25.
(桐庐县)计算,能简算的要简算.①175+25﹣112②8.02×99+8.92③×+×+④(+)×7×5⑤×(0.75﹣)⑥+×(2.5﹣)
(玉环县)求未知数x x﹣25×0.4=140 x:0.45=30:0.09 x+x=2.2.
(黄岩区)直接写出下面各题的得数. = = = = = 0.42﹣0.32= 5.47﹣1.8﹣3.2= 0.25×8.5×4=
(宁波) x+0.5X=5 4x﹣3×=6.5 :x=5:4.