把一个分数先用2约分一次,再用3约分一次,然后用6约分一次,得到的最后结果是,那么原来这个分数是什么?
口算0.6×5= 300×6= 1.2÷3= 80﹣23=3.2×3=19×4= 0.07×6= 100÷4= 4.5÷3=
7.89×4.27 28.56÷5.1 102.6÷3.8.
0.9×0.08= 6+14.4= 24÷0.04= 3.2×7÷3.2×7=0÷3.8= 0.77+0.33= 7÷1.4= 187.7×11﹣187.7=7.2÷8×4= 400÷125÷8= = ()×12=1﹣= 2.34﹣2.3= 1.9×4×0.5= 67.5+0.25=
直接写出得数.0.37+0.73= 1.4﹣0.5= 0.3×0.04= 8÷0.01=2.29÷229= 23.8﹣6.9﹣3.1= 0.6÷0.25= 0.9×2.5=
0.6+2.9= 3.4×5= 4.3﹣2.7= 0.54÷2= 2.35+1.5=3.81×0.1= 3.7÷3.7= 0.5÷0.05= 5.7﹣2.9= 0.75÷0.1=4+0.006= 2.5×40= 2÷0.5= 0.5﹣0.25= 0.6×3.2=6.5÷1.3= 8﹣0.54﹣0.26= 3.6+2.36+1.4= 4.5+4.5×99= 0.125×25×8=