3.7+0.56= 1.3﹣0.8=18.5÷100= 0.66+2.2=6.22﹣3.2= 4.9÷0.01=12.7﹣7.5+2.3= 1.25×0.8﹣0.1=0.6+0.6÷0.1=
(瓯海区)用递等式计算. ①104.8﹣5×10.4÷ ②2496÷48+1620 ③0.125×32×25 ④42×71.7+28.3×42 ⑤16.8﹣+3.2﹣.
(乐清市)求未知数x. x﹣0.125=,=30,4+0.7x="102" ,2x﹣4.5=102.
(平阳县)解方程和比例. ①4x+3×0.7="6.5" ②x:8=:1③2x+2×0.7="4.5" ④x:8=:.
(平阳县)怎样计算简便就怎样计算. ①1598﹣490÷18×36 ②3.2×8×1.25× ③9.6÷1.25+5.4× ④+×(﹣0.625)
(永嘉县)怎样简便就怎样算. 2.7×+1.3× 24×[(﹣)÷] 143﹣6.46﹣3.54.