(河西区)直接写出得数.710﹣560=, 450÷25=, 1.25×0.8= ,1÷0.5== ,=, 1﹣=, =
(永嘉县)怎样简便就怎样算. 2.7×+1.3× 24×[(﹣)÷] 143﹣6.46﹣3.54.
(龙湾区)解方程 :x=:0.6 x﹣x=.
(桐庐县)解方程. ①0.5x=3.5 ②﹣0.1x=0.05 ③0.36:8=x:25.
(桐庐县)计算,能简算的要简算. ①175+25﹣112 ②8.02×99+8.92 ③×+×+ ④(+)×7×5 ⑤×(0.75﹣) ⑥+×(2.5﹣)
(玉环县)求未知数xx﹣25×0.4=140 x:0.45=30:0.09x+x=2.2.