8吨300千克=吨 6角7分=元
5.1×0.85.1 7.0907.09 1.8+0.91.8×0.9
①2y=9 ②x+5 ③x-2>3 ④7+3x=19
5-3.8= 0×13.6= 4×1.3= 0.8×0.5=
①9.6×8.5=
②92.3-4.56=
③201-0.97=
④4.2×3.1=
⑤0.86×1.2=
⑥14.8+6.76=