50毫升=升
6吨600千克=吨
6.5﹣3.4= 1.2×0.5= 1﹣ = 1+0.7=
0÷6.04= × = ÷ = 0.23=
0.28÷2.8= 25×43×4= 100×27%=
①24×25﹣4500÷75
② ×
③69×101
④10.7﹣3.6﹣5.4
⑤4÷5+39×
⑥